Unipulse M252A Operation Manual

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M252A

I NTELL IGENT DOT IMPACT PRINTER

Operation manual

Rev. 1.02

BE SURE TO READ BEFORE USE.

Introduction

Thank you for purchasing our intelligent printer M252A.

This product is to be used by connecting it to our loadcell indicators or digital indicators through the

SI/F (two-wire serial interface). External equipment data other than our indicators can also be

printed by adding optional BCD input or RS-232C interface.

Read this manual and understand the descriptions carefully before use.

After reading the manual, always keep it handy so that it can be referred to at any time.

2010/10/01

SAFETY PRECAUTIONS

Be sure to read for safety.

In order to have an M252A Intelligent Printer used safely, notes I would like you to surely

follow divide into and , and are indicated by the following

documents. Notes indicated here are the serious contents related safely. Please use after

understanding the contents well.

WARNING

CAUTION

WARNING

Misuse may cause the risk of death or

serious injury to persons.

CAUTION

Misuse may cause the risk of injury to

persons or damage to property.

WARNING

● For the entire system to function safely when the M252A becomes faulty or

malfunctions, provide a safety circuit outside the M252A.

● Do not modify the M252A. Doing so may cause fire or electric shocks.

● Do not install in the following environments.

- Places containing corrosive gas or flammable gas.

- Where the product may be splashed with water, oil or chemicals.

● Do not connect a commercial power source directly to the signal input/output

terminals.

● Be sure to use crimp contacts for connection to terminal blocks, and never connect

bare wires.

● Be sure to ground the protective ground terminal.

● Before performing the following, make sure that no power is applied.

- Attachment/detachment of connectors of options, etc.

- Wiring/connection of cables to the signal input/output terminals.

- Connection to the ground terminal.

● For connection to the signal input/output terminals, check the signal names and pin

assignment numbers, and then carry out wiring properly.

● Before applying power, carefully check the wiring, etc.

● Use at a proper power supply voltage.

● Do not damage the power cord. Doing so may cause fire or electric shocks.

● Do not touch any signal input/output terminal while applying power. Doing so may

cause electric shocks or malfunctions.

● In the case of smoke, an abnormal smell or strange sound, immediately turn off the

power, and disconnect the power cable.

● About the built-in lithium battery

Never disassemble, deform under pressure or throw the battery into fire.The battery may explode, catch fire or leak.

- Battery

Model : CR14250SE made by SANYO Electric Co., Ltd.

Nominal voltage : 3V

Nominal electric capacity : 850mAh

Warning on design

Warning on installation

Warning on wiring

III

CAUTION

● Do not install in the following environments.

- Locations exposed to direct sunlight.

- Where the temperature/humidity exceeds the range of the specifications.

- Places containing large quantities of salt or iron powder.

- Where the main body is directly affected by vibrations or shocks.

● Take adequate shielding measures when using at the following locations.

- Near a power line.

- Where a strong electric field or magnetic field is formed.

- Where static electricity, relay noise or the like is generated.

● For sensors, external inputs/outputs and options, use shielded cables.

● For turning on/off the power, be sure to keep intervals of 5 seconds or more.

● Do not open the front cover with the power on when replacing the ribbon cassette, etc.

The printer may start sudden movement, and you may injure yourself.

● Do not drop foreign objects such as screws inside the printer. If an object is dropped,

immediately turn off the power, and completely remove the foreign object before using the printer.

● Do not touch the print head immediately after printing because the print head is hot.

● Never print without paper or a ribbon cassette. Also, do not print out of the paper width.

● Be sure to use a specified ribbon cassette. Use of an unspecified one will cause a

failure.

● After replacing the ribbon cassette, check that the ink ribbon is not slack. If slack, turn

the knob in the direction of the arrow to remove the slack before operation.

● Use paper appropriate to the specifications.

● If you dispose of the product, handle it as industrial waste.

Caution on installation

Caution on wiring

Caution during startup and maintenance

Caution during use

Caution during disposal

Features of the M252A

■ Dot impact mechanism

A 24-digit dot impact type printer mechanism that allows use of copying paper is loaded.

■ Sophisticated statistical computing functions

In addition to grand totals and sub totals, maximum, minimum, average, standard deviation, histograms, diagrams, etc., can be printed.

■ Economical double print

Thanks to the double printing function by which data from two indicators can be printed and added, statistical computations of a double measuring machine having two measuring heads can be performed by one unit.

■ Histograms and diagrams convenient for quality control

Variations in data can be understood visually.

■ Simple setting in an interactive manner

Setting operation is simple in an interactive manner that requires input of set values according to guidance from the M252A.

■ Code classification

Print data assigned codes (within 6 characters for numerical values and katakana) can be classified and added on a code-by-code basis (32 types at the maximum of each ch).

■ Convenient free power supply

100V to 240V AC is acceptable.

■ Perfect data backup

All set values and other data are stored in a nonvolatile memory and lithium-battery-backedup memory, respectively.

■ Selectable interface

A 2-ch SI/F is equipped as standard. BCD input and RS-232C interface are optionally available. (Only 1ch of either a BCD or RS-232C option can be connected.)

How to review this manual

Note

Manual contents are roughly divided into the following six parts.

1 － 3..............Safety instructions, installation of the printer, test printing and connections

with indicators are explained. Basic use of the printer can be understood.

4.......................Settings for the printer use are explained.

5.......................Methods for connecting optional BCD input and RS-232C interface, and

method for use are explained.

6.......................Functions for greater use of the printer are explained.

7.......................Troubleshooting is explained.

Appendix .......Specifications, consumables, after-sales service of this printer are explained.

Explanatory marks in this manual

Precautions and restrictions to operate the printer properly. Be sure to read to prevent misoperation.

Convenience and reference for use of the printer. Reading is highly recommended.

Operating procedures for printer settings are explained.

Contents of the package

About the power cable

CAAC3P-CEE7/7-B2 : CEE7/7 Plug cable (2m)

Item name Quantity

M252A printer body 1

Roll paper 1

Ribbon cassette (One is already installed.) 2

AC cable 1

Instruction manual (this book) 1

Mini screwdriver 1

Roll paper installing bar

Control signal input connector 57-30500 DDK (attached with BCD input OP)

１

・The power cable attached to this product as standard equipment can be used in the AC100V

power supply in Japan. (Official ratings voltage AC125V) Please use the power cable authorized in the country when you use this product outside Japan.

・Our company sells following resistance pressure cable AC250V (European standard

product) separately. Please purchase it from us when you need after confirming its plug shape/voltage.

VII

CONTENTS

1. Before turning on the power .....................1

Name and function of each part ............................... 2

[Front panel] ..........................................................2

[Rear panel] ...........................................................3

Front panel key .............................................. 4

2. Printer preparations ............................7

Installing a ribbon cassette ................................. 8

Installing the power cord ................................... 10

AC spec. ..............................................................10

DC spec. (Depending on the request at the time of order) ..............10

Installing roll paper ....................................... 11

3. Connecting with indicators .....................13

SI/F (two-wire serial interface) ............................ 14

About the SI/F ........................................................14

About the SI/F of the M252A ...........................................14

Connecting through the SI/F ................................. 15

Try to print ................................................ 16

About input ch's ............................................ 16

Print data input ch's and alarm sound ....................... 17

In the case of single print ...........................................17

In the case of double print ...........................................17

What is printed without valid data at Print-Every time ................17

4. For greater use of the printer .................19

Basics of settings .......................................... 20

Mode configuration of the M252A .......................................20

Setting method of the M252A ...........................................20

Basic operation of settings ...........................................21

Cautions in setting ...................................................23

VIII

Details of each setting ..................................... 24

01: Date/Time .........................................................24

02,03: Print Data Selection Ach/Bch ...................................25

04,05: Unit Selection Ach/Bch .........................................26

06: Print Every ON/OFF ................................................26

07: Print Every Format ................................................27

08: Automatic Print ON/OFF ............................................30

09: Interval Print ON/OFF .............................................30

10: Interval Seconds ..................................................31

11: GT/ST Print Format ................................................32

12: Types of Sub Totals ...............................................34

13,15: Histogram Target Value Ach/Bch .................................35

14,16: Histogram Range Ach/Bch ........................................35

17: Standard Deviation ................................................37

18: Data Adding ON/OFF ................................................38

19: PRINT Key ON/OFF ..................................................38

20: Batch Total ON/OFF ................................................39

21: Feed Lines ........................................................40

22: Code Selection Method .............................................40

23: Number of Code Digits Designation .................................41

24,25: Code Table Registration Ach/Bch ................................41

5. Optional interface .............................41

BCD input (option) .......................................... 44

BCD input settings .......................................... 48

41: BCD Decimal Point Position ........................................48

42: BCD Data Logic ....................................................48

43: BCD Minus Logic ...................................................48

44: BCD Over Logic ....................................................48

45: BCD Strobe Logic ..................................................48

RS-232C interface(option) ................................... 49

RS-232C settings ............................................ 50

46: RS-232C Transmission Rate .........................................50

47: RS-232C Parity Bit ................................................50

48: RS-232C Data/Stop Bit .............................................50

49: RS-232C Terminator ................................................51

50: RS-232C Answer Mode ...............................................51

Communications format ....................................... 52

DC power source ............................................. 54

6. Advanced use ...................................55

Classification by code name and code table .................. 56

Code name registration performance with front panel keys ..............57

Code table - Difference from code names - ...........................58

Code table registration performance ...................................59

How to designate a code name/code table ...............................61

Maintenance mode ........................................... 63

1: Test Print .........................................................65

2: Sample Print .......................................................66

3: Self Test ..........................................................66

4: Parameter List .....................................................67

5: Test Mode ..........................................................67

Over print .................................................. 68

Over status (R) .......................................................68

Range over (U/L) ......................................................69

Delete print ................................................ 70

Initialization .............................................. 71

ROM version print ........................................... 71

Date print .................................................. 72

7. Troubleshooting ................................73

Classification of trouble ................................... 74

The printer does not operate properly ....................... 75

The printer does not function properly ...................... 77

Others ...................................................... 78

Appendix

Setting mode list ........................................... 82

Option setting mode list .................................... 83

Maintenance mode list ....................................... 84

List of unit settings ....................................... 84

Character input table ....................................... 85

List of error messages ...................................... 86

Introduction of consumables and options ..................... 87

Product specifications of the M252A ......................... 88

External views .............................................. 90

Before turning on the power

Explanation of the external

■ Name and function of each part 2

■ Front panel key 4

appearance of the M252A

1. Before turning on the power

②

①

⑥

③

④

The push panel is open.

⑤

③

Name and function of each part

Here, the name and function of each part are simply explained.

Detailed explanations of each part are given in its related chapter.

[Front panel]

Name Description

① Front panel keys

② Push panel

③ Paper ejection slot

④ Flip panel

⑤ Paper cutter

⑥ Power lamp

Front parts

Press when operating and setting the M252A.

Open when setting paper or installing a ribbon cassette for the M252A. It pops out approx. 3cm forward when pushing the center (mark) of the panel until you hear it click.

Printed roll paper is ejected from this slot with print on it.

The part below the push panel can be opened frontward. Open when installing a ribbon cassette.

Use when cutting roll paper ejected from the paper ejection slot. The cutter is attached to the upper side of the ejection slot.

The green lamp lights when the power of the M252A is on.

[Rear panel]

②

①

③

④

⑤

⑥⑦⑧

⑨

⑩

⑪

1. Before turning on the power

Name Description

① Input terminal block

② Power supply terminal block

③ Option space

④ Frame ground (F.G.)

⑤ (1) COM

⑥ (2) FEED

⑦ (3) PRINT

⑧ (4) ST

⑨ (5) GT

⑩ (6) (7) SI/F Ach

Rear parts

Connect various kinds of inputs.

Connect the power cord. Securely connect the power cord to a power outlet.

Install an option to expand the functions of the M252A. Either BCD input or RS-232C interface can be installed optionally.

Earth terminal. Be sure to ground to prevent electrostatic interference, etc.

Common terminal of the external input terminal block.

Feeds when short-circuited with the COM terminal.

Prints when short-circuited with the COM terminal.

Prints sub totals when short-circuited with the COM terminal.

Prints grand totals when short-circuited with the COM terminal.

Input terminal for the SI/F (Ach).

⑪ (8) (9) SI/F Bch

Input terminal for the SI/F (Bch).

1. Before turning on the power

⑫ ⑩⑪

① ② ③ ④ ⑤ ⑥ ⑦ ⑧

⑨

(Code A)

(Code B)

(Date)

(Start)

(Stop)

(ST)

(GT)

(Del)

(Function)

(Print)

(Feed)

Front panel key

Key use differs with the modes, but basic use and the meaning of each key, and how to

designate it are simply explained below.

How to designate a key and its function (print mode)

Key (how to designate) Description

①

②

③

④

⑤

⑥

⑦

⑧

Enters the code input (selection) mode of Ach.

Enters the code input (selection) mode of Bch.

Prints date.

Starts interval print.

Stops interval print.

Prints sub totals.

Prints grand totals. The grand totals and printed counts are cleared, and become 0.

The last printed data is printed again, and is deleted from the target of the grand totals (sub totals).

⑨

⑩

⑪

Enters the setting mode.

Prints the current value.

Feeds paper by one line.

1. Before turning on the power

(Hyphen)

(SP)

(No mark)

(Escape)

(Enter)

(Numerical keys)

～

The following shows a timing diagram of the external input terminals on the panel.

PRINT/FEED/ST/GT

OFF

MIN.30ms MIN.60ms

How to designate a key and its function (setting mode)

Key (how to designate) Description

⑥

⑦

⑧

⑩

⑪

⑫

Inputs a hyphen.

Inputs a space.

Goes to the next input position.

Cancels an input value or set value.

Accepts an input value or set value.

Use for inputting numbers, alphabet and katakana.

For character input in code/code table registration, see "Code name registration performance with front panel keys"(page 57), and "Code table registration performance"(page 59).

1. Before turning on the power

Input equivalent circuit

TTL open collector output

← inside

approx.

COM

push switch

outside →

M252A

Short-circuited when IN is ‘H’

toggle

relay

transistor

IC=6mA

Open OFF

Short ON

Vcc

+5V

A signal is inputted to the signal input circuit by short-circuiting or opening the input terminal and the COM terminal. Short-circuiting is effected by means of a contact (such as a relay or a switch) or a noncontact (such as a transistor or an open-collector TTL).

Printer preparations

Installing a ribbon cassette

■ Installing a ribbon cassette 8

■ Installing the power cord 10

■ Installing roll paper 11

and roll paper

2. Printer preparations

■Do not open the front cover with the power on when

replacing the ribbon cassette, etc. The printer may start

sudden movement, and you may injure yourself.

■Do not drop foreign objects such as screws inside the

printer. If an object is dropped, immediately turn off the

power, and completely remove the foreign object before

using the printer.

■Do not touch the print head immediately after printing

because the print head is hot.

Note

Installing a ribbon cassette

Use the PR350/10 (optional accessories) ribbon cassette.

Two ribbon cassette are attached (One ribbon cassette has already been installed at the time of delivery.) .

1. Push the center (mark) of the push panel with your finger until you hear it

click. The push panel pops out forward. And draw out the push panel.

2. Printer preparations

2. Open the flip panel downward. Catch the upper left of the installed ribbon

cassette with your finger（with your fingernail）, and pull and remove it frontward.

3. Install a new ribbon cassette, being careful about its orientation.

Turn the ribbon cassette upside down (in the direction that reverses the PULL marking as shown below), and push it in until you hear it click. Then close the flip panel, and push in the push panel firmly until you hear it click.

2. Printer preparations

AC IN

F. G.

Within 6mm.

F. G.

Note

DC IN

F. G.

Within 6mm.

＋－

F. G.

Red Black

＋－

Red screw Black screw

Note

Installing the power cord

For connection to terminal blocks, use cables with crimp contacts (M3) as shown in the illustration

without unbraiding their ends.

AC spec.

Connect the AC power cord. The input voltage is 100V - 240V AC. The frequency is 50/60Hz.

■ A parallel two-core power cable with crimp contacts is attached to the product.

Be sure to ground the F.G. terminal.

DC spec. (Depending on the request at the time of order)

Connect the positive (+) side of the power source to the red screw side of the terminal block on the back of the M252, and its negative (-) side to the black screw side.The input voltage is 12V-24V DC.

■ No DC power cable is included.

Be aware that the voltage drops depending on the wire thickness and length.Also, never input an AC power source. Doing so will cause a failure.

Installing roll paper

No roll paper has been installed at the time of delivery. Referring to the following procedures, install

roll paper.

1. Push the center (mark) of the push panel with your finger until you hear it

2. Printer preparations

click.

The push panel pops out forward. And draw out the push panel.

2. Insert the roll paper installing bar into roll paper. Direct the paper winding

direction as shown in the illustration, and set it to the bearing.

2. Printer preparations

Enlarged section

← Front

Guide bar

Roll paper

Guide

Note

3. Pass the end of the roll paper under the guide bar at the lower part of the

flip panel, and insert it between the guide bar and guide.

Press the [FEED] key with the paper inserted, and release the key

when the paper comes out of the paper ejection slot.

4. Remove the flexure of the roll paper, and push in the push panel firmly until

you hear it click.

It may cause some trouble if you pull the paper fast or backward when the paper jam occurred during the paper setting. Please pull the paper in the direction of the arrow A slowly and straight to remove it after stopping the paper feed. Cut the power then on again when it doesn't return normally after removing the paper.

Connecting with indicators

■ SI/F (two-wire serial interface) 14

■ Connecting through the SI/F 15

■ Try to print 16

■ About input ch's 16

■ Print data input ch's and alarm sound 17

3. Connecting with indicators

SI/F (two-wire serial interface)

The M252A is equipped with a SI/F interface to connect it with UNIPULSE-manufactured digital

indicators or load cell indicators as standard. In this chapter, connection with indicators through the SI/

F is explained.

About the SI/F

The UNIPULSE's original SI/F is an interface to connect our F series indicators and printer, or

peripheral equipment, such as an external display. SI/F-compatible products can simply be connected

and used without a wareness of data content and the hardware specifications.

Specifications of the SI/F

Connection Two-wire, nonpolar

Transmission distance

Transmission data

Signal standards Signal level Photocoupler-isolated current signal

Parallel two-core cable: 30m Shielded cable: 300m

Measuring/metering data, status information (result of comparison, MD, zero alarm, etc.), error information, automatic print command, etc.

Transmission system

Transmission speed

Data bit 8bit

Start bit 1bit

Stop bit 1bit

Parity ODD

Start/stop synchronous system

600bps

About the SI/F of the M252A

The M252A is equipped with a 2-ch SI/F (Ach and Bch). 6-7PIN and 8-9PIN on the rear terminal block

correspond to Ach and Bch, respectively.

Connecting through the SI/F

0.2in

Note

The M252A is equipped with a 2-ch SI/F. Parallel two-core cables or captyre cables are adequate for

use. The SI/F has no polarity.

1. Strip the casing 0.2in (6mm) on the cable to be connected.

2. Twist the bare wire to fit the terminal hole.

3. Insert the supplied screwdriver into the lower hole and lightly hold it

down.

4. Insert the twisted wires into the upper hole.

3. Connecting with indicators

5. Pull the screwdriver out from the lower hole.

6. Make sure cable is clamped securely and does not come out with a

slight tug.

■ Sectional area of electric wires that can be connected to terminal blocks are 0.2 - 2.5mm

■ Do not attach crimp contacts to the ends of electric wires or solder them.

■ If you connect two or more electric wires, twist them beforehand.

■ Be aware that the orientation of the terminal block is upside-down to our digital indicators

(F366, etc.)

3. Connecting with indicators

Try to print

The M252A prints when any of the following conditions are met.

1. When the [PRINT] key is pressed. (*)

2. When No. 3 (PRINT) and No. 1 (COM) on the terminal block are short-circuited. (*)

3. When an automatic print command is sent from the SI/F.

4. When a print command is input to the RS-232C.

5. At intervals set for interval print. (*)

* In the cases of 1, 2 and 5, the M252A does not print if no print data is input.

About input ch's

The M252A has two data input ch's. When using both ch's, select “8. Double print” or “9. Double print

with count” for [07: Print Every Format].

The following table shows input data to be printed.

・① ：Data input to SIF Ach is printed.

・② ：Data input to SIF Bch is printed.

・OP ：Data input to an option (BCD input or RS-232C) is printed.

・Single print ：When the [Print Every Format] setting is not “Double print”.

・Double print ： When the [Print Every Format] setting is “Double print”.

・Shaded part ：The alarm (buzzer) sounds.

See "Print data input ch's and alarm sound"(page 17) for details.

Input data Single print Double print

Ach Bch Ach Bch

Without OP

With OP

SIF Ach

SIF Bch

SIF Ach + Bch

SIF Ach

SIF Bch

SIF Ach + Bch

SIF Ach + OP

SIF Bch + OP OP

SIF Ach + Bch + OP

OP OP

①× × × × ② ①×①② ①× × × × ② ①×①② ①×

①×①②

① ×

②

Print data input ch's and alarm sound

In the case of no Ach data (single print / double print)

In the case of no Bch data (double print)

With BCD OP

With RS-232C

Ach SIF Data NG

Ach SIF,BCD Data NG

Ach SIF,RS Data NG

Bch SIF Data NG

In the case of single print

In the case where the input ch setting is single print (the [Print Every Format] setting is not double

print), if printing is attempted without print data input from Ach or an optional interface, the alarm

(buzzer) will sound, resulting in error printing.

In the case of double print

In the case where the input ch setting is double printing (the [Print Every Format] setting is double

print), if printing is attempted without print data input from both SIF Ach and an optional interface, and

without print data input from SIF Bch, the alarm (buzzer) will sound, resulting in error printing.

However, printing of the input ch('s) will be produced.

What is printed without valid data at Print-Every time

3. Connecting with indicators

Option input can be made only with Ach. If data input is made by both of option input and SI/F input, priority is given to the SI/F.

3. Connecting with indicators

M E M O

For greater use of the printer

Explanation of each setting

■ Basics of settings 20

■ Details of each setting 24

4. For greater use of the printer

Print mode

Setting mode

Printing is produced in this mode. The M252A starts with this mode after power is turned on.

Printer settings are made in this mode.

Option setting mode

Option settings are made in this mode. You cannot enter this mode if no option is equipped.

Maintenance mode

Maintenance of the printer is performed in this mode.

＋

S e l e c t

---------------Quit

----------------

When key is pushed,

“Quit” is printed.

When A key is pushed, “Quit" is printed.

Input with setting keys

Setting OK

Current set value

M252A

Changed set value

M252A

Basics of settings

Mode configuration of the M252A

The M252A consists of four modes. See the "Setting mode list"(page 80).

Setting method of the M252A

The M252A adopts an interactive manner for making various settings. The current set value is

indicated by printing. You (user) should input a response with keys to proceed with the setting.

Basic operation of settings

※ For details of the option setting mode and maintenance mode,

Cancel/End --> ESC Maintenance --> 3-ENT Option Setting --> 2-ENT Setting --> 1-ENT ==========================

Select

==========================

To enter the setting mode:

To enter the option setting mode:

To cancel or end:

To enter the maintenance mode:

operating

see their respective explanations.

[1] → [ENT]

[2] → [ENT]

[3] → [ENT]

[ESC]

End --> ESC Next --> Number-ENT Change-> --> ENT

Now => 2000/06/05 12:00 01:Date/Time

--------------------------

-------------------------Setting

--------------------------

operating

To make the Date/Time setting:

Since the Automatic Print ON/OFF setting No. is [08], press [08] or [8] → [ENT].

To make other settings:

To end the setting mode:

[ENT]

[Setting No.] → [ENT]

[ESC]

The basic operating procedures for actually making settings of the M252A are described below. Here,

the "Automatic Print ON/OFF" setting is made as an example.

4. For greater use of the printer

1. Press [F] → [ENT], and the following is printed.

To enter the setting mode, press [1] → [ENT] successively.

2. Upon entry of the setting mode, the following is printed. Since the Date/

Time setting comes up when you enter the setting mode, move to the desired item.

4. For greater use of the printer

Current set value

End --> ESC Next --> Number-ENT Change-> --> ENT

Now => ON 08:Automatic Print

------------------------->> Next is 08

operating

To make the Automatic Print setting:

To make other settings:

To end the setting mode:

The current value is "Automatic Print ON".

Change the set value to "OFF".

For changing the set value, develop an input waiting state

with the [ENT] key.

[ENT]

[Setting No.] → [ENT]

[ESC]

> Input new number - ENT

End --> ESC Next --> Number-ENT Change-> --> ENT

Now => ON 08:Automatic Print

--------------------------

To change

operating

This part is printed.

The following lines

are printed with "3".

Since the OFF set value No. is [0], press [0] → [ENT].

[Setting No.] → [ENT]

About setting Nos.

3. Upon entry of the Automatic Print ON/OFF setting, the following is

printed. The current set value is indicated on the "NOW" line.

Setting Nos. facilitate identification of each setting. See detailed explanations of each setting or the appendix "Setting mode list"(page 80).

4. Since the following is subsequently printed, change the set value.

5. The changed set value is printed.

End --> ESC Next --> Number-ENT Change --> ENT

NOW ==> Off 09:Interval Print On/Off

------------------------- New ==> Off

After changing the setting, go to the next setting

(step 2 and 3).

To end the setting mode:

To make the Interval Print ON/OFF setting:

To make other settings:

This part is for the next

setting (09 : Interval Print

ON/OFF).

Changed set value

[ESC]

[Setting No.] → [ENT]

[ENT]

4. For greater use of the printer

Cautions in setting

Some setting items are dependent on one another such that one setting does not become valid or cannot

be made until another setting is turned ON.

The setting items having a mutual dependence are shown below.

06: Print Every ON/OFF 07: Print Every Format The Print Every Format setting is not

07: Print Every Format 20: Batch Total ON/OFF If the Print Every Format setting is

20: Batch Total ON/OFF 07: Print Every Format The Print Every Format setting [8], [9]

22: Code Selection 24: Code Table Selection

Dependence between settings

Source setting Target setting Description

valid until the Print Every ON/OFF setting is turned [ON].

Ach

25: Code Table Selection

Bch

made at [ ON/OFF setting cannot be turned [ON].

or Batch Total ON/OFF setting is turned [OFF].

The Code Table (A/Bch) setting cannot be made until the Code Selection setting is made at [2] or [3]

8], [9] or [10], the Batch Total

[10] cannot be selected until the

4. For greater use of the printer

01: Date/Time

→

Year Date

Time Fixing

operating

Details of each setting

The details and operating method of each setting are explained below. For how to enter the setting

mode and its operating method, see the

Change the date and time. The date and time of the M252A are factory-set. Correct it when it is necessary.

Name of setting 01: Date/Time Initial value The current time has been set at the time of delivery. Input format YYYYMMDDhhmm [ENT]

Caution

・ Input all four digits for the year. ・ Input "0" at the start of a one-digit month/date. ・ Input the time on a 24-hour basis, and input "0" at the start of one-digit

・ A battery is necessary for operation of the clock. The life of the

“Basics of settings” described in the previous chapter.

Ye ar Date Time (Fixed)

hours/minutes.

battery is approx. 8 years.

Example of setting - Setting 8:30 p.m., June 6, 2000 -

4. For greater use of the printer

02, 03: Print Data Selection Ach/Bch

Load cell

indicator

M252A

Indicated

Net

Gross

Ta re

SI/F

Gross

Different types of data can be printed.

Net

Digital

indicator

M252A

SI/F

Indicated

Different types of data cannot be printed.

Indicated value

value

Select the type of data to be printed for each ch. Four types of data can be selected.

Name of setting 02: Print Data Selection Ach

03: Print Data Selection Bch

Selection item 0. Gross (initial value)

1. Net

2. Tare

3. Indicated

Reference

Caution The type of print data selected here is valid only when data is printed

・When printing values indicated by load cell indicators, normally set

the M252A at [3. Indicated]. Select Gross, Net or Tare only when you want to specifically print these.

・When printing values indicated by digital indicators, normally set the

M252A at [3. Indicated].

through the SI/F. When data is printed through the BCD input or RS- 232C

interface, input data is printed irrespective of the type selected

here.

SI/F and indicators

Load cell indicator

Digital indicator

...... The load cell indicator connected through the SI/F sends indicated, net, gross

and tare data at intervals of at the time. Since data to be printed can be selected from it on the printer side, data other than the indicated value can be printed.

.......... The digital indicator connected through the SI/F sends the indicated value

at that time at intervals of

approx. 0.3 sec. irrespective of the indicated value

approx.

0.3 sec.

4. For greater use of the printer

04, 05: Unit Selection Ach/Bch

06: Print Every ON/OFF

Select the unit to be printed on Ach/Bch. 43 types of data can be selected.

Name of setting 04: Unit Selection Ach

Selection item See the "List of unit settings"(page 82). Initial value 02. kg Caution When "Double size" is selected under Print Every Format, the unit is

Select whether or not to print on roll paper.

05: Unit Selection Bch

printed only up to four characters. If a unit of five or more characters is selected, only the first four characters are printed.

Name of setting 06: Print Every ON/OFF Selection item 0. OFF

1. ON (initial value)

Caution

・Since print data is stored in internal memory irrespective of whether

the setting is ON or OFF, sub

・If the setting is OFF, no printing will result.

totals and grand totals are not affected.

Details of setting

ON........................... Data is stored in internal memory with printing on roll paper.

OFF......................... Data is simply stored in internal memory without printing on roll paper.

4. For greater use of the printer

07: Print Every Format

Internal

Ach

Ach input

Bch input

Ach input Bch input

Normal double print

1ch-added double print

computation

Internal

Bch

computation

Internal

Ach

computation

Select the print format of data. 13 types of print format can be selected.

Name of setting 07: Print Every Format Selection item 0. Standard (initial value)

1. With time

2. With code

3. With time & code

4. With date

5. With date & code

6. Diagram

7. Double size

8. Double print

9. Double with cnt

10. Double with code

11. Ach <-- A or B

12. Through print

Reference Ach and Bch are the same in unit, the grand total all of both ch's is

printed after printingthe total of each ch. If the units are different, the grand totals of both ch's are not printed.

Caution

・When "Double size" is selected under Print Every Format, only the

first four characters are printed properly due to the print width. Be careful when selecting the following units.

20:kg/m3 24:kg•cm 30:kg/cm

・The count of "Ach <-- A or B" is numbered serially.

(Selection item 11) Ach and Bch (SIF Ach) input data are all computed as Ach. Make the unit and decimal place settings of Ach and Bch identical. Otherwise, totals will not be able to be printed accurately.

・If "12. Through print" is selected with no RS-232C interface (option),

"ERROR" is printed, resulting in no selection.

4. For greater use of the printer

Input data

2. With code name 3. With time & code

Code name Input dataCount

Time

CountCode name

　　4 500.4kg 2000/10/18 13:45 　　3 498.5kg 2000/10/18 13:15 　　2 502.1kg 2000/10/18 12:45 　　1 501.0kg 2000/10/18 12:15

4. With date (date, time, count, data)

SOLT 4 6643kg 2000/10/18 19:30 SOLT 3 5589kg 2000/10/18 18:30 SOLT 2 6002kg 2000/10/18 17:30 SOLT 1 5010kg 2000/10/18 12:15

Date

Count Input data

Time

5. With data & code name

Date

Code name

Time

Count

1. With time (time, count, data)

1503 500.5kg 1502 450.2kg 1501 1200.0kg 1500 -385.8kg 1499 55.0kg 1498 0.0kg 1497 1000.2kg 1496 666.6kg

0. Standard (count, data)

14:30 1503 500.5kg 14:22 1502 450.2kg 14:00 1501 1200.0kg 13:48 1500 -385.8kg 12:11 1499 55.0kg 10:03 1498 0.0kg 9:20 1497 1000.2kg 6:05 1496 666.6kg

input dataCount CountTime

FGHI 7503 500.5kg FGHI 7502 450.2kg JKLM 2002 1200.0kg FGHI 7501 -385.8kg NOPQR 1502 55.0kg JKLM 2001 0.0kg NOPQR 1501 1000.2kg STUV 1001 666.6kg

NOPQR 1502 55.0kg 11:27 JKLM 2001 0.0kg 11:26 NOPQR 1501 1000.2kg 11:26 STUV 1001 666.6kg 11:25

(code name, count, data) (time, code name, count, data)

(date, time, code name, count, data)

Examples of print

8. Double print

389.3kg

500.0kg

78.1kg

1444.0kg

420.2kg

150.5kg

Ach input data Bch input data

3 389.3kg 46 500.0kg 2 78.1kg 45 1444.0kg 1 420.2kg 44 150.5kg

Count Bch input data

Count Ach input data

9. Double print with count

12. Through print

Characters sent from the RS-232C

interface in ASCII code are printed as they are. Start/stop

through print with the [PRINT] key. If the [PRINT] key is pressed during

through print,an offline state will result, so that through print cannot be performed. If the

[PRINT] key is ressed again, an online state will result, so that through print can be

performed. FEED (paper feed) is valid only in an offline state.

HIGK 389.3g

STU 300.0kg

HIGK 789.3g

STU 450.0kg

HIGK 389.3g

STU 500.0kg

10. Double print with code

Code

Code Bch input data

11. Ach <-- A or B

Ach input data

7 389.3kg

6 300.0kg

5 789.3kg

4 450.0kg

3 389.3kg

2 500.0kg

Count

Count Bch input data

Ach input data

6. Diagram

Input data

500.5kg

450.2kg

1200.0kg

385.8kg

55.0kg

Input dataDisplacement diagram

｛

TARGET: 50.0kg RANGE: 50.0kg

Example

Input data is printed horizontally double size. However, the unit can be printed only up to four characters.

7. Double size print (data)

-0.2

48.7

78.5

102.1

Lower Target Upper

▲

limit Value limit

4. For greater use of the printer

08: Automatic Print ON/OFF

09: Interval Print ON/OFF

Printing can be automatically produced by sending a print command from the SI/F or RS-232C interface to the M252A. Select whether this Automatic Print is ON or OFF.

Name of setting 08: Automatic Print ON/OFF Selection item 0. OFF

Caution

Details of settings

1. ON (initial value)

・Printing is always produced in the following conditions irrespective of

whether Automatic Print is ON or OFF.

・When the [PRINT] key is pressed. ・When the PRINT terminal and COM terminal to the rear panel are

short-circuited.

・Since an automatic print command cannot be given from the BCD

input, it is necessary to give a print command on the printer for printing print data from the BCD input.

ON........................... Printing is produced when a print command is sent from the SI/F or RS-

232C

interface. For the print commands from the SI/F and RS-232C inter- face, see the instruction manual of each indicator and "RS-232C interface(option)"(page 49).

OFF......................... Printing is not produced with a print command from the SI/F or RS-232C

interface.

■ For the print command from the SI/F, see the instruction manual of each connection indicator.

■ For the print command from the RS-232C interface, see "RS-232C interface(option)"(page 49).

Select whether or not to print at fixed intervals.

Name of setting 09: Interval Print ON/OFF Selection item 0. OFF (initial value)

Caution

1. ON

Keys other than [STOP] (to stop Interval Print) and [ENT] cannot be used during Interval Print.

4. For greater use of the printer

Interval Print

Start

End

1st time 2nd time 3rd time

nth time

* Setting Interval Seconds at 5 seconds.

5sec. 5sec. 5sec.

10: Interval Seconds

→

Fixing

operating

50 seconds

Seconds

5000 seconds

Seconds

→

Fixing

Details of settings

ON........................... Print is automatically produced at intervals of seconds set under

[10: Interval Seconds] (See below). Printing is not produced with a print command from the SI/F or RS-232C interface.

OFF......................... Interval Print is not performed.

Timing of Interval Print

Set the interval for Interval Print in seconds.

Name of setting 10: Interval Seconds Setting range 1 - 9999 seconds Initial value 0003 seconds Caution The setting range of [Interval Seconds] varies depending on the [07:

Print Every Format] setting (page 27). Set [Print Every Format] before setting [Interval Seconds].

When the [Print Every Format] setting is 00 or 01: 1 ～ 9999 seconds. When the [Print Every Format] setting is 02 ～ 07: 2 ～ 9999 seconds. When the [Print Every Format] setting is 08 ～ 11: 4 ～ 9999 seconds.

Example of setting -Setting 50 seconds/5000 seconds-

4. For greater use of the printer

11: GT/ST Print Format

0. Standard 1. With code name

2. With avg./max/min 3. With statistical data

----------------------- GT 1250kg COUNT 10 DATE 2000/07/05 01:25

--- GRAND TOTAL Ach ---

----------------------- GT 1250kg COUNT 10 CODE ABCDE DATE 2000/07/05 01:25

--- GRAND TOTAL Ach ---

----------------------- R(MAX-MIN) 1903kg MIN 554kg MAX 2457kg AVE 1352kg σn 675kg

GT 13515kg COUNT 10 CODE ABCDE DATE 2000/08/02 21:39

--- GRAND TOTAL Ach ---

----------------------- H OVER TIMES 2 L OVER TIMES 1 RANGE 20kg TARGET 100kg

R(MAX-MIN) 122kg MIN 0kg MAX 122kg AVE 94kg σn 32kg

GT 1036kg COUNT 11 CODE ABCDE DATE 2000/06/21 13:01

--- GRAND TOTAL Ach ---

Direction of print

Select the print format of grand totals and sub totals. Five types of formats can be selected.

Name of setting 11: GT /S T Print Format Selection item 0. Standard (initial value)

Reference If Double print is selected under [Print Every Format] and Ach and Bch

Examples of print

1. With code

2. With ave/max/min

3. With statistical

4. With histogram

are the same in unit, the grand total all of both ch's is printed after printingthe total of each ch.

Examples of printing

4. With histogram

----------------------- HI 1

U4 0 U3 2 U2 1 U1 3 T 0 L1 1 L2 1 L3 0 L4 0

LOW 1

HIGHEST 121

～ U4 117～ 120 U3 112

～

116

U2 108

～

111

U1 103

～

107

T 98

～

102

L1 93

～

L2 89

～

L3 84～ 88 L4 80

～

LOWEST

～ 79

H OVER TIMES 1 L OVER TIMES 1 RANGE 20kg TARGET 100kg

R(MAX-MIN) 51kg MIN 72kg MAX 123kg AVE 103kg σn 14kg

GT 1031kg COUNT 10 CODE ABCDE DATE 2000/06/21 13:01

--- GRAND TOTAL Ach ---

(Continued to the lower right)

(Continued from the upper left)

Direction of print

Times

Range

----------------------- GT 2300kg COUNT 20

--- GRAND TOTAL ALL ---

GT 1250kg COUNT 10 CODE ABCDE DATE 2000/07/05 01:25

--- GRAND TOTAL Bch ---

GT 1050kg COUNT 10 CODE WXYZA DATE 2000/07/05 01:25

--- GRAND TOTAL Ach ---

Ach and Bch are the same in unit, the

grand total all of both ch's is printed

after printingthe total of each ch.

Ach: Code Name WXYZA

Bch: Code Name ABCDE

In the case of Double print

If the decimal place setting of each

ch is different, automatic totaling

will result according to the ch with

a larger number of decimal places.

4. For greater use of the printer

12: Types of Sub Totals

100 250 300 500

400

100timesST250times

300times

Printing count

400times

500times

100timesST150times

50times

100times

100 250 300 5004000

Printing count

Select the types of sub totals. There are two types of sub totals: Middle and Section.

Name of setting 12: Typ es of Sub Totals Selection item 0. Middle sub (initial value)

Details of settings

Middle sub ............. A middle sub total from the last total to this sub total is printed.

1. Section sub

Section sub total.... A section sub total from the last sub total to this sub total is printed.

4. For greater use of the printer

13, 15: Histogram Target Value Ach/Bch

14, 16: Histogram Range Ach/Bch

* These setting items also serve as the "Range over (U/L)" setting (page 69).

Set the target value and range (width from the target value) necessary to work out statistical data and the histogram.

Name of setting 13,15: Histogram Target Value Ach/Bch

14,16: Histogram Range Ach/Bch

Input range

Setting conditions

Explanation of setting

Caution

Histogram target value 0 ～± 99999 (initial value: +00000) Histogram range 5 ～ 99998 (initial value: 99998)

(Upper limit) = (Target value) + (Range) ≦ +99998 (Lower limit) = (Target value) - (Range) ≧ -99998

・If data exceeding the range is input, U (upper limit exceeded) or

L (lower limit exceeded) is added to the print data.

・For switching the sign during input, use the [- (hyphen)] key. ・Input a setting value excluding a decimal point.

Example）100.0 → 1000

・The range between the upper limit and lower limit are divided

into nine equal parts to produce histogram ranks.

・The numbers of pieces of data exceeding the upper limit and

lower limit are counted as H OVER TIMES and L OVER TIMES, respectively.

・If any data exceeds the upper limit or lower limit at Print-Every time,

a range-over symbol is printed on the right-hand side of the data. Data ＞ Upper limit　⇒　’U’ Data ＜ Lower limit　⇒　’L’

・Since addition of U and L covers all print data during printing, if the

histogram and diagram are not used, use maximum value (initial value) and the target value of zero (0) (initial vlaue) as the range.

・The target value can be set only in a condition that U and L can be

printed. Before setting the target value, change the range value.

・If any target value is input not meeting the conditions, “Error” will be

printed, and then an automatic movement will be made to the range setting of the corresponding ch. Change the range setting value, and then set the target value again.

4. For greater use of the printer

0 80 100 120

Lower Target

Upper

L print

55.0kgL etc

U print

150.0kgU etc

limit value

limit

0 60001

L print

60000kgL etc

No U print

80000 99999

More than 99999 cannot be

(

Lower Target

Upper

limit value

limit

printed.

)

Example of setting -Setting the target value at 100 and the range at 20-

Example of noprinting

-Setting the target value at 80000 and the range at 19999-

4. For greater use of the printer

* This setting item is necessary when the

GT/ST Print Format setting is 2 - 4.

17: Standard Deviation

○○

○

Group

All data in the group is used, and the standard deviation is obtained.

–()

i1=

∑

------------------------

n-1

○○

○

Group

Only several points of sample data are used, and the overall standard deviation is estimated.

n1–

–()

i1=

∑

n1–

------------------------

Select a standard deviation calculating expressions. There are two types of calculating expression.

Name of settings 17: Standard Deviation Selection

0. σn (initial value)

1. σ

n-1

Details of settings

σn........................... When all data in a group is used, and the standard deviation of the group is

obtained.

Caution in selection

........................ Several pieces of sample data in a group are used, and the standard

n-1

deviation of the group is estimated from the sample data.

calculates the standard deviation only with the sample data extracted from all print data.

n-1

Therefore, if it is used when the quantity of data is small, the reliability of the value becomes low.

4. For greater use of the printer

18: Data Adding ON/OFF

GT 300.57kg COUNT 3 DATE 2000/07/01 10:00

---- GRAND TOTAL Ach --- 3 100.15kg

2 100.56kg* 2 100.47kg*

2 100.21kg 1 100.21kg

Example of setting

Changed to ON in

Changed to OFF

Actually, setting

operations (print)

for a change should

be performed.

(Omitted)

this interim.

in this interim.

19: PRINT Key ON/OFF

Select whether or not the print data is targeted for grand totals/sub totals.

Name of setting 18: Data Adding ON/OFF Selection item 0. OFF

Caution If Data Adding OFF is selected, printing is produced irrespective of the

Details of settings

ON........................... The print data is targeted for grand totals/sub totals.

OFF......................... The print data is not targeted for grand totals/sub totals.

" * " (asterisk) is printed at the end of the printed data.

Meaning of setting

1. ON (initial value)

setting of [06

: Print Every ON/OFF].

This setting is for testing printing after changing the setting(s) of equipment. Normally use at ON.

Select whether the [PRINT] key on the front panel is ON or OFF.

Name of setting Selection item

Caution

19: PRINT Key ON/OFF

0. OFF

1. ON (initial value)

This setting is irrelevant to the PRINT terminal on the rear panel and an automatic print command from the SI/F or RS-232C

interface.

Meaning of setting

Select [OFF] if you do not want to print through a careless operation of the automatic equipment, etc.

4. For greater use of the printer

20: Batch Total ON/OFF

Raw glass materials

Generally, raw materials of glass are mixer-agitated materials including silica sand, soda ash, lime, cullet and others. Batch Total prints how much raw glass materials are mixed as a result of measuring each of these five types of materials.

Mixer

2 10.08kg 1 300.16kg

------------------------- GT 937.02kg COUNT 3 DATE 2000/07/01 11:32

--- GRAND TOTAL Ach ---

------------------------ BT 333.14kg COUNT 5 DATE 2000/07/01 11:32

----- BATCH TOTAL -----

5 3.99kg 4 10.05kg 3 8.99kg 2 10.05kg 1 300.06kg

Examples of printing

------------------------- BT 422.84kg COUNT 2 DATE 2000/07/01 11:32

------ BATCH TOTAL ---- 10 100.11kg 9 10.06kg 8 2.11kg 7 10.06kg 6 300.50kg

------------------------ BT 558.62kg COUNT 1 DATE 2000/07/01 11:32

------ BATCH TOTAL -----

5 225.82kg 4 20.55kg 3 2.01kg

Silica sand

Soda ash

Lime Cullet Others

Direction of print

(Continued to the lower right)

(Continued from the upper left)

Set whether or not to find the batch total. If Batch Total is selected, the [FEED] terminal block on the rear panel is switched to the [Batch Total Print] terminal block.

Name of setting 20: Batch Total ON/OFF Selection item 0. OFF (initial value)

1. ON

Caution

・Batch Total can only be executed by short-circuiting [FEED] and

[COM] on the rear terminal block.

・If Double print is set, Batch Total cannot be turned ON.

Meaning of setting

Several small measurements are batched and printed as one measurement.

4. For greater use of the printer

21: Feed Lines

Example of

DATE 2000/07/01 13:30

--- GRAND TOTAL Ach ---

3 100.15kg

2 100.18kg

1 100.21kg

Feed lines

printing

22: Code Selection Method

Setting Ach Bch

(initial value)

Key Board Key Board

1 Option Key Board 2 Key Table Key Table 3 Option Table Key Table

Set the number of lines for feeding paper after Print Every, ST (sub total print) and GT (grand total print).

Name of setting 21: Feed Lines Setting range 0 - 9 (lines) Initial value 0 Caution Paper is fed by the number of lines set under [Feed Lines] after Print

Meaning of setting

Immediately after every printing, the printed data cannot be checked because the paper has not yet been ejected from the ejection slot. Set 3 - 4 lines for visually checking every piece of printed data.

Every, ST, GT, BT, Sample Print and Test Print. Paper is always fed by

one line with the

[FEED] key.

Select a method for selecting codes.

Name of setting 22: Code Selection Method Selection item

Caution If Keyboard/Option is selected, code names can be selected. If Key

Details of setting

Keyboard................ Code names can be selected with the keys on the front panel.

Option..................... Code names can be selected through RS-232C interface or BCD input

Key table ................ Codes can be selected with the keys on the front panel.

Option table ........... Codes can be selected through the RS-232C interface or BCD input

Table/Option Table is selected, codes can be selected from code tables.

(option).

4. For greater use of the printer

23: Number of Code Digits Designation

Example)

This part is printed but is not the target of classification for totaling.

Classification is performed only with the last two digits, which are the target of totaling.

Classification for

The Number of Code Digits is set at two digits.

totaling

①

②

①

②

０００００１

０００１０１

０００２０１

１００１０２

０００１０２

24, 25: Code Table Registration Ach/Bch

Set the number of code digits for classification.

Name of setting 23: Number of Code Digits Designation Setting range 0 - 6 (digits) Initial value 6 Caution When using code tables, set the Number of Code Digits to two digits. If

it is set to three or more digits, normal classification cannot be performed.

Details of setting

Usually up to six digits can be used for code names, but if the Number of Code Digits is set, code names are classified by the set number of digits from their ends, so that code names having a different beginning can also be classified as the same for totaling.

Name of setting 24: Code Table Registration Ach

Maximum number of codes

Caution

25: Code Table Registration Bch

64 (32 for each ch)

・The code table can only be registered with the keys on the front panel. ・For details of the code table, see "Classification by code name and

code table"(page 56).

4. For greater use of the printer

M E M O

Optional interface

BCD input and RS-232C interface

■ BCD input (option) 44

■ BCD input settings 48

■ RS-232C interface(option) 49

■ RS-232C settings 50

■ Communications format 52

■ DC power source 54

5. Optional interface

BCD input (option)

The BCD input is an interface to take in BCD data, and code numbers to the M252A.

Applicable connector DDK-manufactured 57-30500 or equivalent Input data Print data, codes (number, space, hyphen) Input equipment Digital switch, DIP switch, BCD output equipment, etc. Input logic Select negative logic or positive logic.

BCD input pin assignment

No No

1 COM 26 Code 10

2 Print data 1 27 Code 20

3 Print data 2 28 Code 40

4 Print data 4 29 Code 80

5 Print data 8 30 Code 100

6 Print data 10 31 Code 200

7 Print data 20 32 Code 400

8 Print data 40 33 Code 800

9 Print data 80 34 Code 1000

10 Print data 100 35 Code 2000

11 Print data 200 36 Code 4000

12 Print data 400 37 Code 8000

13 Print data 800 38 Code 10000

14 Print data 1000 39 Code 20000

15 Print data 2000 40 Code 40000

16 Print data 4000 41 Code 80000

17 Print data 8000 42 Code 100000

18 Print data 10000 43 Code 200000

19 Print data 20000 44 Code 400000

20 Print data 40000 45 Code 800000

21 Print data 80000 46 Over input (See page 68)

22 Code 1 47 Minus input

23 Code 2 48 Reserved

24 Code 4 49 Strobe input

25 Code 8 50 Reserved

Codes for BCD data input

Note

Binary number Hexadecimal number Print

MSB　　　　　LSB

0000

5. Optional interface

Character

1001

1010 A Space

1011 B Space

1100 C Space

1101 D

1110 E Space

1111 F Space

- When you input a code from BCD input, please choose 1or 3 of setting item "code selection ".

- When you make a code print by print every format, please choose thing with a code. By the default, only the count and data are displayed.

‐ (Hyphen)

5. Optional interface

Input equivalent circuit

TTL open collector output

IC=0.5mA

short-circuited when IN is ‘H’

toggle

relay

transistor

approx.

Logic Negative Positive

Open OFF ON

Short ON OFF

Vcc

← inside

COM

push switch

+5V

outside →

M252A

Read command

Data

Valid data Valid data

MAX. 5ms

MIN. 15ms

MAX. 5ms

MIN. 15ms

Read

OFF

MIN. 10ms

When ON continues for 1 sec or more

MIN. 10ms

OFF

Approx. 100

100ms100

100ms

100

100ms100ms

Sampling Sampling

OFF

1 sec or more

Sampling

1 sec or more 1 sec or more

SamplingSampling

* When the read command is short-circuited for 1 sec or more,

data is taken in asynchronously at intervals of 100ms.

or more

command

1 sec or more

Approx. 1 sec or more

5. Optional interface

41: BCD Decimal Point Position

42: BCD Data Logic

43: BCD Minus Logic

44: BCD Over Logic

45: BCD Strobe Logic

How to enter the option mode

BCD input settings

Select a decimal point position to input data through the BCD input. Five types of decimal point positions can be selected.

Name of setting 41: BCD Decimal Point Position Selection item 0. *.****

1. **.***

2. ***.**

3. ****.*

4. ***** (initial value)

Select a BCD input logic.

Name of setting 42: BCD Data Logic

43: BCD Minus Logic 44: BCD Over Logic 45: BCD Strobe Logic

Selection item 0. Negative logic

1. Positive logic

Initial value 0. Negative logic (all) Reference Logic settings can be made separately for Data/Code, Minus, Over, and

Strobe.

Press the [F] → [ENT] - [2] → [ENT] keys in order. For details,

see "Basics of settings"(page 20).

RS-232C interface(option)

RxD

RTS

CTS

DTR

TxD

RxD

CTS

RTS

DSR

DTR

TxD

PC or

Crossing cable

D-Sub9pin

female

D-Sub9pin

female

DCD

* This connection diagram shows cables in the case where the PC in use is DTE (data

terminal equipment). If the M252A is connected to DCE (data circuit terminator

equipment) such as a modem, use straight type cables.

* Also, recheck the connector shape and signal lines (pin assignment) of the equipment you

use before preparing cables.

No. I/O Description

‐

(Unused)

2INRxD

3OUTTxD

4 OUT DTR

5*SG

‐

(Unused)

7OUTRTS

8OUTCTS

‐

(Unused)

the like

M252A

The RS-232C is an interface to take in RS-232C spec data, codes and command signals to the M252A.

Signal level RS-232C spec Transmission distance Approx. 15m Transfer system

Transfer speed 1200, 2400, 4800 or 9600 bps selection Bit configuration Start bit: 1

Code ASCII Connector D-Sub 9pin male (CN33) Necessary settings 46: RS-232C transmission rate

Start/stop synchronous system，full duplex communications

Character length: 7 or 8 bit selection Stop bit: 1 or 2 bit selection Parity bit: Non, odd or even selection

47: RS-232C parity bit 48: RS-232C data/stop bit 49: RS-232C terminator 50: RS-232C answer mode

5. Optional interface

RS-232C pin assignment

5. Optional interface

46: RS-232C Transmission Rate

47: RS-232C Parity Bit

48: RS-232C Data/Stop Bit

Note

RS-232C settings

Select transmission rate

Name of setting 46: RS-232C Transmission Rate Selection item 0. 1200bps

Caution The setting must be the same as the connecting equipment.

Select parity bit.

1. 2400bps

2. 4800bps

3. 9600bps (initial value)

Name of setting 47: RS-232C Parity Bit Selection item 0. Even

1. Odd (initial value)

2. Non

Caution The setting must be the same as the connecting equipment.

Select data/stop bit.

Name of setting 48: RS-232C Data/Stop Bit Selection item 0. 7bit 1stop (initial value)

1. 7bit 2stop

2. 8bit 1stop

3. 8bit 2stop

Caution The setting must be the same as the connecting equipment.

When printing a katakana code, set the RS-232C character length of the M252A and the PC to 8 bits. If set to 7 bits, transmission of katakana data is disabled.

5. Optional interface

49: RS-232C Terminator

50: RS-232C Answer Mode

OK : CRLF

The received command has been executed.

The received command is invalid.

NG :

CR LF

Received command

Select terminator.

Name of setting 49: RS-232C Terminator Selection item 0. CR

1. CR+LF (initial value)

Caution The setting must be the same as the connecting equipment.

When receiving data or a command through the RS-232C interface, the M252A returns with the received data or command to the host computer. Select this return format.

Name of setting 50: RS-232C Answer Mode Selection item 0. MODE 0 (M250 mode) (initial value)

1. MODE 1 (M252 mode)

Reference Select the M250 mode when using software specifically prepared for

UNIPULSE-manufactured intelligent printer M250 in the M252A. Normally, it is recommended to use the M252 mode.

Caution When preparing software such that two or more commands are sent

successively, be sure to program the software so that the next command is sent after receiving a response .

Details of settings

MODE 0 (M250 mode)

........................... Echo-back is performed with respect to all received commands. Echo-back

MODE 1 (M252 mode)

........................... Information regarding whether or not a command has been executed is

is also performed even when the command is invalid (for example, when a code name is received even though it is set so that code names are to be input with front panel keys)

returned as it is added to the header with respect to all received commands.

5. Optional interface

FA0± 999. 9 9CRLF

Command

Sign

5 digits + decimal

Terminater

* If no decimal point is included, 0 is added to

point

the uppermost digit.

FA1± 099. 9 9CRLF

Command

Sign

Terminater

* If no decimal point is included, 0 is added to

5 digits + decimal

the uppermost digit.

Note

If the setting of "Automatic Print ON/OFF" of

M252A is OFF, no printing will be performed.

See "08 : Automatic Print ON/OFF" (page 30 )

for details.

FA2 CRLF

Command

Terminater

Code (6 digits)

Unused

Number : 0 - 9

English letter : A - Z Katakana : ア - ン

Symbol : hyphen, slash, Space

｛

Code name

FA2 CRLF

Command

Terminater

Unused

Code table No.: 00 - 31

Space

Code table No.

Communications format

The M252A receives all data through the RS-232C as character strings consisting of ASCII characters.

For data and command formats, see below.

Data (without automatic print)

Data (automatic print)

Code Name

Code table

Delete last data

FB0CRLF

FB1CRLF

FB2CRLF

FB3CRLF

FB9CRLF

FB4CRLF

FB6

Note

GT prin t

ST print

Data print (latest data print)

Paper feed

Batch total print

Date/Time print

5. Optional interface

- When you input a code with RS-232C interface, please choose 1or 3 of setting item "code selection ".

- When you make a code print by print every format, please choose thing with a code. By the default, only the count and data are printed.

5. Optional interface

DC IN

＋－

Red Black

+15％

-15％

Note

DC power source

For the M252A, DC power source specification can be selected at order-time.

Connect the positive (+) side of the power source to the red screw side of the terminal block on the back of the M252A, and its negative (-) side to the black screw side.

Input voltage range

DC12V ～ 24V (voltage between terminals of the M252A)

Be aware that the voltage drops depending on the wire thickness and length.Also, never input an AC power source. Doing so will cause a failure.

Current consumption (25 ℃ ,With BCI option)

Condition DC12V DC24V

Wait Approx.150mA rms Approx.100mA rms

Print Every Approx.800mA rms Approx.400mA rms

Current consumption (max.)

10A peak (Approx.2msec)

2A peak (Approx.2msec)

※ When the histogram format is printed, current consumption is maximum.

Inrush current (25 ℃ ,With BCI option)

DC12V DC24V

800mA peak (150msec) 1A peak (150msec)

Advanced use

Various functions of the M252A

■ Classification by code name and code table 56

■ Maintenance mode 63

■ Over print 68

■ Delete print 70

■ Initialization 71

■ ROM version print 71

■ Date print 72

6. Advanced use

A B C D E

W X Y Z A

N O P Q R

Registered code names

…

Up to 32 code names

It is possible to total on a

Measuring

Totaling

for each ch

code-by-code basis.

Measuring

Totaling

Measuring

Totaling

Classification by code name and code table

The M252A can total sub totals and grand totals on the basis of code names assigned to print data. Up

to 32 code names can be registered for each ch.

Maximum number of code names

Method of registration

Input format ###### (6 digits at the maximum) Usable characters umbers, English letters, katakana, synbols (-, *, /, space) Code name

designation method

32 code names for each ch

・A registration waiting state is developed by inputting with front panel

keys and pressing [A] → [ENT] ([B] → [ENT] on Bch).

・Input through the RS-232C. (page 51)

Front panel keys, RS-232C, BCD input

Code name registration performance with front panel keys

>> Input Code A - ENT >> Now Code A [ABC ]

operating

Press

Ａ

Virtual cursor position

three times.

Ａ

Ｂ

two times. ＡＢＣ

three times.

ＡＢＣＤ

(Actually, it is

ＡＢＣＤＥ

four times.

Upon completion of input, fix with

two times.

Press

not indicated.)

>> Code name is [ABCDE ]

Input code names by using numeral keys from [1] to [0], and [-(ST)], [SP(GT)],

[(DEL)] keys. Since each numerical key is assigned approx. 10 characters, press the key until a

desired character is displayed results. (This is designateed a key group.) For the list of characters

assigned to each group, see the appendix "Character input table"(page 83).

- For inputting a character in the same group successively, press [DEL] once to move

the virtual cursor one character ahead.

- For inputting a character in a different group, input it successively. It is not necessary to

press [DEL].

The basic operating procedures for actually setting the M252A actually are described below. Here, the

code name "ABCDE" is registered to Ach as an example.

1. Press [A] → [ENT], and the following is printed to start

code name input.

6. Advanced use

2. Input the code name as follows.

3. The registered code name is printed.

6. Advanced use

Code table

Code table number Corresponding

code name

00 S T U V

01 F G H I

02 N O P Q R

│ │ │

31 J K L M

By specifying a code table number, the corresponding code name is designateed, printed and classified. For designateing NOPQR, input "02" to the last two digits.

By specifying a code name, the code name is designateed, printed and classified. For designateing NOPQR, input "NOPQR".

Code names

Registered

code name

S T U V

F G H I

N O P Q R

│ │ │

J K L M

Code table - Difference from code names -

By registering code names corresponding to 2-digit numbers (code table numbers) between 00 and 31 beforehand (The same also applies to Bch.), a registered code name can be designated and printed by specifying its table number without inputting its code name every time you select a code name. If the code table is not used, it is necessary to designate the code name by inputting it with front panel keys or through an option.

Maximum number of code names

Method of registration

Input format Code ## (00 - 63 to the last two digits)

Usable characters Numbers, English letters, katakana,

Code

However,

namedesignateing method

Registration

Call

32 code name for each ch. Ach (00 - 31) Bch (32 - 63)

Code name ###### (6 digits at maximum)

symbols (-, *, /, space)

Front panel keys, RS-232C, BCD input

Ach :00 ～ 31 Bch :32 ～ 63 Ach :00 ～ 31 Bch :00 ～ 31

Code table registration performance

End --> ESC Next --> Number-ENT Input --> ENT

24:Code Table Ach ========================== >> Next is 24

To enter code table registration:

operating

To make other settings:

To cancel or end:

For code table registration, press [ENT].

[ENT]

[Setting no.] → [ENT]

[ESC]

00 to 31 - ENT >> Input table number

Here, press [01] → [ENT].

operating

Code table registration is almost the same as the abovementioned [Code name registration

performance] except for inputting table numbers corresponding to code names at the beginning.

The basic operating procedures actually for setting the M252A are described below. Here, the code

table number "01" and code name "NOPQR" are registered on Ach as an example.

1. Select “2. Key Table” or “3. Option Table” under [22: Code Selection

Method].

2. Set “2 digits” under [23: Number of Code Digits Designation].

3. Referring to "4. For greater use of the printer" (page 19), enter [24: Code

Table Registration Ach] in the setting mode.

6. Advanced use

4. Since the following is printed, input the code table number in a 2-digit

number.

6. Advanced use

>> Input code name - ENT >> Now Code [GH ] >> Table number is 01

operating

Referring to [Code registration performance], input the code

name.

Registered table number

>> Cancel ---> ESC 00 to 31 ENT >> Input table number

>> Code name is [NOPQR ]

To proceed with registration:

To cancel or end:

Registered code name

[Code table number]

→ [ENT]

[ESC]

Method of code table registration

5. Since the following is printed, input the code name successively.

6. The registered code name is printed, and code table registration is

completed.

For the method of code table registration, also see "Code Table Registration Ach/Bch" (page 41).

How to designate a code name/code table

Note

For designating a code name, input the code name, and for designating a code table, input the table

number. There are some restrictions in interface for designating a code name/code table.

Select whether to designate a code name or code table and whether to use front panel keys or an

optional interface under [22: Code Name Selection Method] in the setting mode.

Selecting with front panel keys

Press [A] → [ENT] ( [B] → [ENT] on Bch) in the print mode, and

a code name selection state is developed. In the case of a code name, input by the same operation as the abovementioned method of registration. In the case of a code table, it is requested to input the table number, so press [Del] four times, and then input a 2-digit number. (If the first digit and the second digit are the same, press [Del] once after inputting the first digit, and then input the second digit.)

Selecting through an option

See the explanations for each option.

6. Advanced use

List of methods of code name/code table selection

Code Code table

Ach Bch Ach Bch

Front panel keys BCD input

RS-232C

(Note) Codes that can be selected through the BCD input are only numbers,

spaces and hyphens.

List of code table registration methods

Front panel keys BCD input RS-232C

○○○○

△ (Note) ×○×

○×○×

Code table

Ach Bch

○○ ×× ××

Code table numbers can be selected through an option only to Ach. Selection cannot be made to Bch.

6. Advanced use

Note

000005　　4　100kg 000006　　1　100kg 000005　　3　 50kg 000003　　1　100kg

000005　　2　100kg 000001　　2　100kg 000001　　1　100kg 000005　　1　 50kg

Example) When 000032 is selected after 32 types of code 000000~000031 were printed.

After calculated GT.

Accumulation is conducted

taking the code first printed

as selected.

In this case 000005 is

selected.

000032 000006 000005 000003

000005 000001 000001 000005

Input Print

Print direction

ABCDE 2　100kg FGHIJ 1　100kg KLMNO

3　 50kg

PQRST 1　100kg ABCDE 1 50kg KLMNO

2　100kg

UVWXYZ 2　100kg UVWXYZ 1　100kg KLMNO

1　 50kg

Accumulation is conducted

taking the Code registered

in Code table as selected.

In this case, ABCDE is

selected.

32 06 05 03 00 05 01 01 05

Input Print

Print direction

Example) When 32 in Code Table is selected.

Be careful when over 32 types of codes or other than 00~31 codes is selected from front panel or option,accumulation is conducted taking items below as selected

Code: Code printed first after calculated GT

Code Table: Code registered in Code table 00

Maintenance mode

-------------------------Cancel/End --> ESC Maintenance --> 3-ENT Option Setting --> 2-ENT Setting --> 1-ENT ==========================

Select

==========================

To enter the setting mode:

To enter the option setting mode:

To cancel or end:

To enter the maintenance mode:

operating

[1] → [ENT]

[2] → [ENT]

[3] → [ENT]

[ESC]

* For details of the setting and option setting modes,

see the respective explanations.

In the maintenance mode, operations of the M252A are checked.

Test Print All characters that can be printed by the M252A are printed.

Sample Print Print Every and GT/ST Print formats are printed.

Self Test The ROM and RAM of the M252A are tested, and the results are

Parameter List A list of current parameters of the M252A is printed.

Test Mode For factory check (Do not use).

Method for operating the maintenance mode

How to enter each item in the maintenance mode and procedures for each execution are described below. Here, test print is performed as an example.

1. Press [F] → [ENT], and the following is printed.

6. Advanced use

The data input status is printed.

printed.

To enter the maintenance mode, press [3] → [ENT] successively.

6. Advanced use

-------------------------Cancel/End -->ESC Test Mode -->5-ENT Parameter List -->4-ENT Self Test -->3-ENT Sample Print -->2-ENT Test Print -->1-ENT

--------------------------

-------------------------Maintenance

==========================

operating

To perform a test printing:

To perform a sample printing:

To perform a self test:

Since the item No. of Test Print is [1], press [1] →

[ENT]. As soon as [ENT] is pressed, a test

printing starts.

To print a parameter list:

To enter the test mode:

To cancel or end the maintenance mode:

［1］→ [ENT］

［2］→ [ENT］

［3］→ [ENT］

［4］→ [ENT］

［ESC］

2. Since a list of items in the maintenance mode is printed, select a target

item.

Cautions in maintenance mode

In the maintenance mode, each operation starts as soon as selection is made from the above

menu ([item No.] → [ENT]). A confirmation message as in the setting mode and in the

option setting mode are not printed.

The test mode is an item for a factory check. Do not use this mode. (It is password-locked.)

6. Advanced use

1: Test Print

Sample of printing

Strobe ON Strobe OFF

Print data input

T: Over OFF

Code input

O: Over ON

Input data/status

Built-in font

All characters that can be printed with the M252A, and the input data/status of each I/F are printed.

Test print is executed by pressing [1] → [ENT] in the maintenance mode.

It is judged that no valid data is input if the print data part of the BCD print data input is other than 0 to 9 as follows:

T + EA001

(Printing of print data input values is disabled.)

The SIF Bch status is printed only for double printing.

For BCD, printing results only when a BCD option is attached.

The data input status from the BCD IN connector is shown.

6. Advanced use

2: Sample Print

Sample of printing (partial)

************************ ** SAMPLE PRINT No.3 ** ************************

A---00 9876 12345kg ************************ ** SAMPLE PRINT No.2 ** ************************

05:09 9876 12345kg ************************ ** SAMPLE PRINT No.1 ** ************************

9876 12345kg ************************ ** SAMPLE PRINT No.0 ** ************************

（↑ Print continues.）

3: Self Test

Results of check

Results of test

Normal ：〇 Abnormal： ×

｛

* The description of SUM varies depending on the ROM version.

------------------------- >> SUM:2AE >> ROM:

〇

>> RAM: 〇 >> Checking...

--------------------------

Print Every and GT/ST Print formats are printed. Test print is executed by pressing [2] → [ENT] in the maintenance mode.

■ As a sample, 180 lines are printed in total (approximately 65cm).

The ROM and RAM of the M252A are tested, and the results are printed. Press [3] → [ENT] in the maintenance mode, and the buzzer sounds and the test

starts.

If the result of Self Test is × or the test does not finish normally, the M252A may be faulty. Ask your deaer representative or for sevicing.

A list of current parameters of the M252A is printed.

4: Parameter List

Sample of printing

kg 04:Unit Selection Ach

Gross 03:Print Data Bch

Gross 02:Print Data Ach

2000/07/01 05:11 01:Date/Time ************************ ** PARAMETER LIST ** ************************

（↑ Print continues.）

5: Test Mode

If a code table is used, code table setting values are also printed.

6. Advanced use

■ As a parameter list, 100 lines are printed in total (approximately 35cm).

For double printing with use of a code table, 170 lines are printed (approximately 60cm).

The initial setting mode by the factory, and locked by password.

6. Advanced use

EFGHI 4 563kg EFGHI 3 1356kgR EFGHI 3 1356kgR EFGHI 3 849kg EFGHI 2 1000kg EFGHI 1 1356kgR EFGHI 1 150kg

Example of printing

Over status

Not counted up.

-----------------------GT　　　　　　　　2562kg COUNT 4 CODE EFGHI DATE 2000/07/04 02:36

--- GRAND TOTAL Ach ---

GT (grand total)

Note

Over print

Print data out of the range set by the connecting indicator or the M252A is identified by this function.

There are two types of over print: over status (R) and range over (U/L).

Over status (R)

If the indicator side causes a LOAD (A/D converter input over), OFL1 (net>99999) or zero

abnormality, "R" is added after printed data, and the data is not added to grand totals/sub totals. It is not

counted up either.

With the SI/F, over status is automatically sent from the indicator. With the BCD input, over print is performed when a signal is input to pin No.46 [over input].

Over status is printed because the indicator side has a problem. The problem cannot be solved by setting on the printer side.

Range over (U/L)

0 80 100 120

Lower Target Upper

L print U print

(Example) When the target value is set at 100, and the range at 20.

EFGHI 7 68kgL EFGHI 6 142kgU EFGHI 5 121kgU EFGHI 4 89kg EFGHI 3 107kg EFGHI 2 79kgL EFGHI 1 120kg

Lower limit exceeded

Upper limit exceeded

-----------------------GT　　　　　　　　 726kg COUNT 7 CODE EFGHI DATE 2000/07/04 02:36

--- GRAND TOTAL Ach ---

GT (grand total)

55.0kgL etc 150.0kgU etc

‘U’ print Measurement value

‘L’ print Measurement value

limit value limit

> Target value + Range

< Target value - Range

If the range set under Target Value Ach (Bch) and Range Ach (Bch) is exceeded, the print is added

after printed data. If the upper limit is exceeded, "U" is printed, and if the lower limit is exceeded, "L"

is printed.

6. Advanced use

■ If range over (U/L) and over status (R) (See the preceding page.) occur at the same time, over status

(R) is printed.

■ Range over is a guide for users to know whether or not printed values exceed the range. Sub totals

and grand totals are not affected.

6. Advanced use

EFGHI 5 119kg EFGHI 4 113kg EFGHI 4 81kg EFGHI 4 81kg EFGHI 3 96kg EFGHI 2 111kg EFGHI 1 100kg

Example of printing

-----------------------GT　　　　　　　　 539kg COUNT 5 CODE EFGHI DATE 2000/07/04 02:36

--- GRAND TOTAL Ach ---

Data you want to delete

GT (grand total)

The previously printed data is reprinted as it is marked with “-” indicating deletion, and is deleted from the grand total/sub total data.

EFGHI 5 119kg EFGHI 4 81kg EFGHI 3 96kg EFGHI 2 111kg EFGHI 1 100kg

Can be deleted.

Cannot be deleted.

Current value

Note

Delete print

Use if you want to delete printed data (when you do not want to add the data to subtotals/grand totals).

Only one piece of the last printed data can be deleted.

Press [DEL] → [ENT] in the print mode, and the data is deleted.

■ The data that can be deleted is only the previously printed data.

■ Delete print cannot be performed twice or more successively.

■ In the case of double printing, delete print can be performed only for Bch.

Initialization

Cancel --> ESC OK --> ENT

----All data initial----

operating

To execute initialization:

To cancel initialization:

[ENT]

[ESC]

------------------------

>> Complete

Note

----------------------- Ver.1.03

------------------------

Ver.5.00 Op 232 Ver.5.00 Op BCD

The internal memory of the M252A is completely cleared, and the parameters are restored to their

factory default settings.

6. Advanced use

1. Turn on the power while pressing the [A] key.

2. Since the following is printed, press [ENT].

■ Deleted data or settings cannot be restored. Carefully perform this operation.

ROM version print

Press [6] → [ENT] in the print mode, and the ROM version is printed.

3. If the following is printed, initialization is successful.

When the version is printed, the option name(s) is printed if any.

6. Advanced use

DATE 2000/07/04 23:19

Date print

Press [DATE] → [ENT] in the print mode, and the current time is printed.

Troubleshooting

■ Classification of trouble 74

■ The printer does not operate properly 75

■ The printer does not function properly 77

■ Others 78

7. Troubleshooting

Classification of trouble

Find applicable trouble out of the following, and take remedies according to the reference page. If

printing still cannot be generated properly, check the ROM version of the M252A body (See page 71)

and contact us.

The printer does not operate properly.

The M252A does not start............................................................................................. P.71

Printing is not generated................................................................................................ P.71

Printing is not generated even if the [PRINT] key is pressed. ......................... P.72

Although the printer head is running, nothing is printed. ............................................. P.72

Printing stops while printing ......................................................................................... P.72

Values different from those indicated by the load cell indicator are printed................. P.72

The printer does not function properly.

Printed counts are wrong............................................................................................... P.73

Values of sub totals/grand totals are wrong................................................................... P.73

Others

Printing has been generated by mistake. ....................................................................... P.74

The target value cannot be set....................................................................................... P.74

A pink line appears at the left end of the roll paper. ..................................................... P.74

The buzzer sounds when carrying out printing. ............................................................ P.74

The printer does not operate properly

The M252A does not start.Trouble 1

Cause 1

Remedy1

Cause 2

Remedy1

Printing is not generated.Trouble 2

Cause 1

Remedy1

Remedy2

Remedy3

Remedy4

Cause 2

Remedy1

The M252A is not connected to a power source.

Check that the power cord is fixed properly.

If the power LED does not light even though the M252A is connected to a power source,

the fuse may have blown.

Since the fuse has been installed inside the M252A, disassembly is necessary for

replacement. Therefore, it should be replaced by UNIPULSE. Consult your dealer

representative or UNIPULSE.

7. Troubleshooting

Printing is not generated until the data input terminals (SI/F, BCD input, RS-232C) are

connected properly and print data is sent.

Check to see if the connectors are inserted properly, and check for broken wires and

miswiring.

Check that the equipment sending data to the M252A (indicator sending SI/F signals, PC

sending RS-232C signals, etc.) operates normally.

In the case of a connection through the BCD input, check that the M252A and target

equipment are consistent in logic.

In the case of a connection through the RS-232C, check that the M252A and target

equipment are consistent in communication conditions. Settings that must be consistent

include transmission rate, character length, start bit, stop bit and parity bit.

Printing is not generated if the Print Every ON/OFF setting is OFF.

Make the Print Every ON/OFF setting at ON.

7. Troubleshooting

Cause 3

Remedy1

Remedy2

Printing is not generated even if the [PRINT] key is pressed.Trouble 3

Cause 1

Remedy1

Although the printer head is running, nothing is printed.Trouble 4

Cause 1

Remedy1

Values different from those indicated by the load cell

Trouble 6

Trouble 5

indicator are printed.

Cause 1

Remedy1

The printer is clogged with dust or jammed with paper.

Open the push panel, and check the mechanical part of the printer. Remove dust with air

or the like.

In the case of a paper jam, the printer is locked, so that [Print] and [Feed] cannot be used.

It may cause some trouble if you pull the paper fast or backward when you remove the

paper. Please pull the paper forward slowly and straight to remove it after stopping the

paper feed.

After removing paper, turn the power off and on again.

The [PRINT] Key setting is OFF.

Referring to "Print Key ON/OFF"(page 38), make the [PRINT] Key setting ON.

A ribbon cassette has not been installed, or the ribbon cassette is out of ink.

Referring to "Installing a ribbon cassette"(page 8), install or replace the ribbon cassette.

SI/F signals from the load cell indicator include indicated and various kinds of weight

data irrespective of the value indicated by the indicator at that time.

Select data to be printed on the printer side. Set referring to "Print Data Selection Ach/

Bch" (page 25).

The printer does not function properly

Printed counts are wrong.Trouble 1

Cause 1

Remedy1

Values of sub totals / grand totals are wrong.Trouble 2

Cause 1

Remedy1

Cause 2

Remedy1

Counts are stored in battery-required memory. If the power is turned off and on again

with the battery exhausted, a problem occurs such that printing is not counted normally.

The battery needs to be replaced. Since the battery should be replaced by UNIPULSE,

contact your dealer representative. The average life of the battery is approx. 8 years. The

time may also be incorrect if the battery is exhausted.

7. Troubleshooting

The decimal point position printed by the M252A depends on that of the indicator side.

If the decimal point position on the indicator side is changed during printing, sub totals /

grand totals are not calculated properly.

Never change the decimal point position of the indicator during printing. Change the

decimal point position after finding grand totals and clearing print data.

Data to which over status (R print) is added is not added.

Check that over status (R print) is not added to the print data.

The over status occurs due to indicator side trouble. Troubleshoot it referring to the

instruction manual of the indicator.

7. Troubleshooting

Printing has been generated by mistake.Trouble 1

Remedy1

The target value cannot be set.Trouble 2

Cause 1

Remedy1

A pink line appears at the left end of the roll paper.Trouble 3

Cause 1

The buzzer sounds when producing printing.Trouble 4

Cause 1

Remedy1

Others

The last piece of printed data can be deleted by delete print. For the details, see "Delete

print"(page 70).

The setting cannot be made if the total of the absolute value of the target value and the

range exceeds 99999.

Since the initial value of the range is 99999, the target value cannot be set in a initial

state. Referring to "Target value Ach/Bch and range Ach/Bch"(page 36), change the set

value of the range before setting the target value.

A pink line appears to the edge when the remainder of paper decreases. Have roll paper

ready for replacement.

In the case where the input ch setting is single printing (the [Print Every Format] setting

is other than double print), if printing is attempted without print data input from Ach or

an optional interface, the alarm (buzzer) sounds, resulting in error printing. In the case of

double printing (the [Print Every Format] setting is double print), if printing is attempted

without print data input from both SIF Ach and an optional interface, and without print

data input from SIF Bch, the alarm (buzzer) will sound, resulting in error printing.

However, printing is produced for the ch with input.

See "Print data input ch's and alarm sound"(page 17).

Check to see if connection has been made properly according to the settings (single print

or double print).

7. Troubleshooting

Cause 2

Remedy2

In Print- Every, Warning (Buzzer) will sound if number of code in each channel exceeds

32. In this case, Count to first code after GT Print, and print the code.

Please operate each channel with 32 code or less. When the GT Print is done, the number

of code is reset to 0.

7. Troubleshooting

M E M O

■ Setting mode list 82

■ Option setting mode list 83

■ Maintenance mode list 84

■ List of unit settings 84

■ Character input table 85

■ List of error messages 86

■

Introduction of consumables and options

■ Product specifications of the M252A 88

■ External views 90

Appendix

* Bold Character ： Initial setting value

Setting mode list

No. Name of setting Details of setting Page

01 Date/Time Current Date/Time 24 02 Print Data Selection Ach 0. Gross

1. Net

2. Tare

3. Indicated

03 Print Data Selection Bch 0. Gross

1. Net

2. Tare

3. Indicated

04 Unit Selection Ach See the "List of unit settings"(page 84)

(Initial value of kg)

05 Unit Selection Bch See the "List of unit settings"(page 84)

(Initial value of kg)

06 Print Every ON/OFF 0. OFF

1. ON

07 Print Every Format 0. Standard

1. with time

2. with code

3. with time & code

4. with date

5. with date & code

6. Diagram

7. Double size

8. Double print

9. Double with cnt

10. Double with code

11. Ach <-- A or B

12. Through print

08 Automatic Print ON/OFF 0. OFF

1. ON

09 Interval Print ON/OFF 0. OFF

1. ON

10 Interval Seconds

11 GT/ST Print Format 0. Standard

12 Types of Sub Totals 0. Middle sub

13 Histogram Target Value Ach Initial value +00000 34 14 Histogram Range Ach Initial value 99998 34 15 Histogram Target Value Bch Initial value +00000 34 16 Histogram Range Bch Initial value 99998 34 17 Standard Deviation

18 Data Adding ON/OFF 0. OFF

19 PRINT Key ON/OFF 0. OFF

1 ～ 9999 seconds (Initial value of 0003 seconds)

1. with code

2. with ave/max/min

3. with statistical

4. with histogram

1. Section sub

0. σ

1. σ

n-1

1. ON

Appendix

No. Name of setting Details of setting Page

20 Batch Total ON/OFF 0. OFF

1. ON

21 Feed Lines

22 Code Selection Method Ach

23 Number of Code Digits Designation

24 Code Table Registration Ach 39 25 Code Table Registration Bch 39

0 ～ 9 (Initial value of 0)

0. Key Board

1. Option

2. Key Table

3. Option Table

Bch

0. Key Board

1. Key Board

2. Key Table

3. Key Table

1 ～ 6 (Initial value 6)

Option setting mode list

No. Name of setting Details of setting Page

41 BCD Decimal Point Position 0. *.****

1. **.***

2. ***.**

3. ****.*

4. *****

42 BCD Data Logic 0. Negative

1. Positive

43 BCD Minus Logic 0. Negative

1. Positive

44 BCD Over Logic 0. Negative

1. Positive

45 BCD Strobe Logic 0. Negative

1. Positive

46 RS-232C Transmission Rate 0. 1200bps

1. 2400bps

2. 4800bps

3. 9600bps

47 RS-232C Parity Bit 0. Even

1. Odd

2. Non

48 RS-232C Data/Stop Bit 0. 7bit 1stop

1. 7bit 2stop

2. 8bit 1stop

3. 8bit 2stop

49 RS-232C Terminator 0. CR

1. CR+LF

50 RS-232C Answer Mode 0. MODE0 (M250 Mode)

1. MODE1 (M252 Mode)

When the number of characters is five characters, it becomes a print only the head four characters in the double size print.

Note

Appendix

Maintenance mode list

No Name of setting Page

1 Te st Print 60 2 Sample Print 60 3 Self Test 61 4 Parameter List 61 5 Test Mode 61

List of unit settings

NO. Unit Type NO. Unit Type NO. Unit Type

00 No unit 44

μg

Mass

87 mPa•s 01 gMass45 mg 88 Pa•s 02 kg 46 Mg 89 cm Length 03 t 47 oz 90 in 04 lb 48 TONNE 91 ft 05 m 06

μm

Length

μN

50 mN 93

Force

92 t/min

/min

07 mm 51 MN 94 rad Angle 08 km 52 dyn 95 09

Vo l u m e

53 kdyn 96 deg 54

μN•m

Torque

m2/s

11 55 mN•m 98 mm/s Speed

56 kN•m 99 m/min 13 m/s Speed 57 MN•m 100 m/h 14 km/h 58 g•cm 101 15

m/s

Acceleration

59 kN•cm 102 mA

μA

16 Hz Frequency 60 t•cm 103 A 17 kHz 61 t•m 104 kA 18 MHz 62 ft•lb 105 19 rpm 20

kg/m

Revolution speed

Density

63 in•lb 106 mV

64 in•oz 107 V

μV

21 NForce65 ftH2O Pressure 108 kV 22 kN 66 inH2O 109 WPower 23 kg•m

Tor que

67 24 kg•cm 68 25 N•m 69

kN/cm

kN/m

μPa

110 kW 111 MW

112 VA 26 Pa Pressure 70 mPa 113 J Work 27 kPa 71 hPa 114 kJ 28 MPa 72 GPa 115 MJ 29 mmHg 73 30 31

kg/cm

N/m

74 mbar 117 ppm 75 bar 118 pH

μbar

116 %RH

32 kg/s Mass flow 76 psia 119 G Acceleration 33 kg/h 77 psig 120 gal 34 t/s 78 atm 121 count 35 t/h 79

36 37 38 39

40 41

m3/s

m3/h

/s /h

Ｋ ℃

Flow

80 81 82 83 mg/m

Temperature 84 kg/m

85 kgm/s Momentum

42 86

g/cm

t/m

g/m

kg•m

Density

112 pulse

43 % Percentage

Viscosity

Mass flow

Flow

Viscosity

Current

Vo l t a g e

Humidity

Ratio

Acidity

Times,

Frequency

Character input table

※※※※※

B a c k t o t h e f i r s t c h a r a c t e r .

※※※※※

※

※※※※※※※※※※※※※※※※※※※※※※※※※

※

※※※※※

Appendix

Key

１２３４５６７８９

1AB

2CDE

3FGH

4IJK

5LMN

6OPQ

7RST

アイウエオ

カキクケコ

サシスセソ

タチツッテト

ナ二ヌネノ

ハヒフヘホ

マミムメモ

8UVW

9XYZ

ー／＊

※ Marks express the Japanese syllabary.

ヤャユュヨョ

ラリルレロ

ワヲン゛゜

－ (hyphen)

Space

(Character deletion is made.)

Advances one character.

(Character deletion is not made.)

■ After switching to the tenth character, you will return to the first character.

■ Blank parts in the table function in the same way as the space (character deletion).

Appendix

Error1

Error2

Error3

Error4

Error5

Error

List of error messages

This error is printed if [Print Every Format] is selected when the [Print Every] setting is OFF.

⇒ Check the set value of [06: Print Every ON/OFF] (page 26).

This error is printed if [Batch Total] is turned ON when the [Print Every Format] setting is "Double

print", "Double with count" or "Double with code".

⇒ Check the set value of [07: Print Every Format] (page 27).

This error is printed if "Double print" or "Double with count" is selected under [Print Every Format]

when the [Batch Total] setting is ON

⇒ Check the set value of [20: Batch Total ON/OFF] (page 39).

This error is printed if a code selection table is selected when the [Code Selection] setting is not 2 or 3.

⇒ Check the set value of [22: Code Selection] (page 40).

This error is printed if a value not included in the setting items is input.

This error is printed if the set value is out of the input range.

Introduction of consumables and options

Ribbon cassette

(consumable)

Printing paper

(consumable)

BCD input interface

(option)

RS-232C interface

(option)

PR350/10 (10 pieces in a set)

PP350/10 (10 rolls in a set) Width: 57.5 ± 0.5mm, Diameter: 60mm,

Attachment connector （57-30500DDK）

Overall length: 30m

Appendix

Product specifications of the M252A

Printer section

Printing system

Print speed Approx. 2.5 lines/sec. (approx. 60cps)

Number of print digits 24 digits

Ink ribbon Ribbon cassette

Printing paper Roll paper (PP350)

Durability MCBF 1,000,000 lines or more

5 × 7 dot impact system

width: 57.5 ±0.5mm, diameter: 60mm, overall length: 30m) Number of printable lines: Approx. 8,000 lines/roll

Duplicate roll paper (PP350-2P)

width: 57.5 ±0.5mm, diameter: 60mm, overall length: 20m) Number of printable lines: Approx. 5,900lines/roll

(Roll paper: Approx. 200 rolls or more)

Setting section

Setting method Front panel keys

Storage of set values Set values: Stored in NOV-RAM (nonvolatile memory).

Data: SRAM (backed up by a lithium battery).

Settings See "Setting mode list"(page 82).

Main functions

Printing methods Print with the PRINT key.

Print by print command input (PRINT terminal). Print by automatic print command input (SI/F, RS-232C). Automatic print by interval setting.

Print data Date, time, measured value, code (6-digit), count (1-9999

times), subtotal (9-digit), grand total (9-digit), batch total, target value, range, maximum value, minimum value, average, standard deviation, range (maximum - minimum), diagram, histogram

Functions GT/ST print, batch total, code classification, delete print, over

print, initialization, maintenance, double print

External input signal

Rear terminal block (1) COM, (2) FEED, (3) PRINT, (4) ST, (5) GT

Connector: WAGO 5pin

Interface

Rear terminal block (6-7) SI/F-Ach, (8-9) SI/F-Bch

Option BCD input interface

Connector: DDK-manufactured 57-30500 or equivalent

Option RS-232C interface

Connector: D-Sub 9pin (CN33)

General performance

Appendix

AC Spec. Power supply

voltage

Power

consumption

Inrush current 15A (5msec): 100V AC max. load condition

DC Spec.

(Dependi

ng on the

request

at the

time of

order)

Working conditions

Power supply

voltage

Current

consumption

Inrush current 1A peak (maximum) (150msec)

100V to 240V AC (+10%, -15%)

On standby: Approx. 2.8VA During print: 20VA (maximum), Approx. 8VA (average)

(ordinary temperature, at cold-start)

30A (5msec): 200V AC max. load condition

(ordinary temperature, at cold-start)

12V to 24V DC ( ± 15%) (voltage between terminals of the M252A)

On standby: Approx.150mA rms During print: 10A peak (maximum)

(Approx. 2msec, Histogram format printed) Approx.800mA (average) (Print Every Format printed)

(ordinary temperature, at cold-start)

Temperature: Operating temperature range 0 to +40 ℃

Storage temperature range -20 to +70 ℃

Humidity: 85%RH or less (non-condensing)

Outer dimensions

Panel cutting dimensions

Weight Approx. 1.4kg

110W × 110H × 168.4D (mm) (not including projections)

92W × 92H (mm)

Unipulse M252A Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

M252A

Name and function of each part

Front panel key

Installing a ribbon cassette

Installing the power cord

Installing roll paper

SI/F (two-wire serial interface)

Connecting through the SI/F

Try to print

About input ch's

Print data input ch's and alarm sound

Basics of settings

Details of each setting

BCD input (option)

BCD input settings

RS-232C interface(option)

RS-232C settings

Communications format

DC power source

Classification by code name and code table

Maintenance mode

Over print

Delete print

Initialization

ROM version print

Date print

Classification of trouble

The printer does not operate properly

The printer does not function properly

Others

Setting mode list

Option setting mode list

Maintenance mode list

List of unit settings

Character input table

List of error messages

Introduction of consumables and options

Product specifications of the M252A