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
I
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.
II
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
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
IV
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.)
V
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.
VI
Contents of the package
About the power cable
CAAC3P-CEE7/7-B2 : CEE7/7 Plug cable (2m)
Item nameQuantity
M252A printer body1
Roll paper1
Ribbon cassette (One is already installed.)2
AC cable1
Instruction manual (this book)1
Mini screwdriver1
Roll paper installing bar
Control signal input connector 57-30500 DDK
(attached with BCD input OP)
1
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
Here, the name and function of each part are simply explained.
Detailed explanations of each part are given in its related chapter.
[Front panel]
NameDescription
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.
2
[Rear panel]
②
①
③
④
⑤
⑥⑦⑧
⑨
⑩
⑪
1. Before turning on the power
NameDescription
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).
3
1. Before turning on the power
⑫⑩⑪
①②③④⑤⑥⑦⑧
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.
4
1. Before turning on the power
(Hyphen)
(SP)
(No mark)
(Escape)
(Enter)
(Numerical keys)
~
0
F
The following shows a timing diagram of the external input terminals on the panel.
PRINT/FEED/ST/GT
OFF
ON
MIN.30msMIN.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).
5
1. Before turning on the power
Input equivalent circuit
TTL open collector output
*
← inside
approx.
COM
push
switch
1
outside →
M252A
IN
Short-circuited when IN is ‘H’
toggle
relay
transistor
IN
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).
6
Printer preparations
2
Installing a ribbon cassette
■ Installing a ribbon cassette8
■ Installing the power cord10
■ Installing roll paper11
and roll paper
7
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.
8
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.
9
2. Printer preparations
AC IN
F. G.
Within 6mm.
LN
F. G.
Note
DC IN
F. G.
Within 6mm.
+-
F. G.
RedBlack
+-
Red screwBlack 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.
10
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.
11
2. Printer preparations
Enlarged section
← Front
Guide bar
Roll paper
Guide
Note
A
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.
12
Connecting with indicators
3
■ SI/F (two-wire serial interface)14
■ Connecting through the SI/F15
■ Try to print16
■ About input ch's16
■ Print data input ch's and alarm sound 17
13
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
ConnectionTwo-wire, nonpolar
Transmission
distance
Transmission
data
Signal standardsSignal levelPhotocoupler-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 bit8bit
Start bit1bit
Stop bit1bit
ParityODD
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.
14
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.
2
.
■ Be aware that the orientation of the terminal block is upside-down to our digital indicators
(F366, etc.)
15
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 dataSingle printDouble print
AchBchAchBch
Without OP
With OP
SIF Ach
SIF Bch
SIF Ach + Bch
SIF Ach
SIF Bch
SIF Ach + Bch
SIF Ach + OP
SIF Bch + OPOP
SIF Ach + Bch + OP
OPOP
①×
×××②
①×①②
①×
×××②
①×①②
①×
①×①②
×
×
①×
①×
①×
OP
OP
②
×
16
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
AchSIFDataNG
AchSIF,BCDDataNG
AchSIF,RSDataNG
BchSIFDataNG
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.
17
3. Connecting with indicators
M E M O
18
For greater use of the printer
4
Explanation of each setting
■ Basics of settings20
■ Details of each setting24
19
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.
+
+
+
0
F
+
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
20
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,
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.
21
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.
22
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/OFF07: Print Every FormatThe Print Every Format setting is not
07: Print Every Format20: Batch Total ON/OFFIf the Print Every Format setting is
20: Batch Total ON/OFF07: Print Every FormatThe Print Every Format setting [8], [9]
22: Code Selection24: Code Table Selection
Dependence between settings
Source settingTarget settingDescription
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
.
23
4. For greater use of the printer
01: Date/Time
→
→
YearDate
TimeFixing
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 setting01: Date/Time
Initial valueThe current time has been set at the time of delivery.
Input formatYYYYMMDDhhmm [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 arDateTime (Fixed)
hours/minutes.
battery is approx. 8 years.
Example of setting - Setting 8:30 p.m., June 6, 2000 -
24
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
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 setting02: Print Data Selection Ach
03: Print Data Selection Bch
Selection item0. Gross (initial value)
1. Net
2. Tare
3. Indicated
Reference
CautionThe 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.
25
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 setting04: Unit Selection Ach
Selection itemSee the "List of unit settings"(page 82).
Initial value02. kg
CautionWhen "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 setting06: Print Every ON/OFF
Selection item0. 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.
26
4. For greater use of the printer
07: Print Every Format
Internal
Ach
Ach input
Bch input
Ach inputBch 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 setting07: Print Every Format
Selection item0. 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
ReferenceAch 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.
2
・If "12. Through print" is selected with no RS-232C interface (option),
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.
HIGK389.3g
STU300.0kg
HIGK789.3g
STU450.0kg
HIGK389.3g
STU500.0kg
10. Double print with code
Code
CodeBch input data
11. Ach <-- A or B
Ach input data
7389.3kg
6300.0kg
5789.3kg
4450.0kg
3389.3kg
2500.0kg
Count
CountBch 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
LowerTargetUpper
▲
▲
limitValuelimit
4. For greater use of the printer
29
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 setting08: Automatic Print ON/OFF
Selection item0. 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 setting09: Interval Print ON/OFF
Selection item0. OFF (initial value)
Caution
30
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 time2nd 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 setting10: Interval Seconds
Setting range1 - 9999 seconds
Initial value0003 seconds
CautionThe 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-
31
4. For greater use of the printer
11: GT/ST Print Format
0. Standard1. With code name
2. With avg./max/min3. 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 setting11: GT /S T Print Format
Selection item0. Standard (initial value)
ReferenceIf 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.
32
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
~
97
L2 89
~
92
L3 84~ 88
L4 80
~
83
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
33
4. For greater use of the printer
12: Types of Sub Totals
100250 300500
ST
400
100timesST250times
0
ST
300times
Printing count
ST
400times
ST
500times
GT
ST
100timesST150times
ST
50times
ST
100times
ST
100times
100250 3005004000
Printing count
GT
Select the types of sub totals.
There are two types of sub totals: Middle and Section.
Name of setting12: Typ es of Sub Totals
Selection item0. 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.
34
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 setting13,15: Histogram Target Value Ach/Bch
・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.
35
4. For greater use of the printer
080100120
Lower Target
Upper
L print
55.0kgL etc
U print
150.0kgU etc
limit value
limit
060001
L print
60000kgL etc
No U print
80000 99999
More than 99999
cannot be
(
Lower Target
Upper
limitvalue
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-
36
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
σ
n
○○
○
○
○
○
○
○
○
Group
All data in the group is used,
and the standard deviation is
obtained.
σ
n
χ
i
χ
–()
2
i1=
n
∑
n
------------------------
=
σ
n-1
○○
○
○
○
○
○
○
○
Group
Only several points of sample
data are used, and the overall
standard deviation is
estimated.
σ
n1–
χ
i
χ
–()
2
i1=
n
∑
n1–
------------------------
=
Select a standard deviation calculating expressions.
There are two types of calculating expression.
Name of settings17: 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
σ
........................ 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.
σ
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.
37
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)
(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 setting18: Data Adding ON/OFF
Selection item0. OFF
CautionIf 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.
38
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
210.08kg
1300.16kg
------------------------- 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 -----
53.99kg
410.05kg
38.99kg
210.05kg
1300.06kg
Examples of printing
------------------------- BT422.84kg
COUNT 2
DATE 2000/07/01 11:32
------ BATCH TOTAL ---- 10100.11kg
910.06kg
82.11kg
710.06kg
6300.50kg
------------------------ BT 558.62kg
COUNT 1
DATE 2000/07/01 11:32
------ BATCH TOTAL -----
5225.82kg
420.55kg
32.01kg
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 setting20: Batch Total ON/OFF
Selection item0. 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.
Set the number of lines for feeding paper after Print Every, ST (sub total print) and GT (grand
total print).
Name of setting21: Feed Lines
Setting range0 - 9 (lines)
Initial value0
CautionPaper 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 setting22: Code Selection Method
Selection item
CautionIf 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
40
Table/Option Table is selected, codes can be selected from code tables.
(option).
(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
①
②
①
②
0000 01
0001 01
0002 01
1001 02
0001 02
24, 25: Code Table Registration Ach/Bch
Set the number of code digits for classification.
Name of setting23: Number of Code Digits Designation
Setting range0 - 6 (digits)
Initial value6
CautionWhen 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.
Register a code table. What should be registered are codes and corresponding code names for
the code table.
Name of setting24: 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).
41
4. For greater use of the printer
M E M O
42
Optional interface
5
BCD input and RS-232C interface
■ BCD input (option)44
■ BCD input settings48
■ RS-232C interface(option)49
■ RS-232C settings50
■ Communications format52
■ DC power source54
43
5. Optional interface
BCD input (option)
The BCD input is an interface to take in BCD data, and code numbers to the M252A.
Applicable connectorDDK-manufactured 57-30500 or equivalent
Input dataPrint data, codes (number, space, hyphen)
Input equipmentDigital switch, DIP switch, BCD output equipment, etc.
Input logicSelect negative logic or positive logic.
BCD input pin assignment
NoNo
1COM26Code10
2Print data127Code20
3Print data228Code40
4Print data429Code80
5Print data830Code100
6Print data1031Code200
7Print data2032Code400
8Print data4033Code800
9Print data8034Code1000
10Print data10035Code2000
11Print data20036Code4000
12Print data40037Code8000
13Print data80038Code10000
14Print data100039Code20000
15Print data200040Code40000
16Print data400041Code80000
17Print data800042Code100000
18Print data1000043Code200000
19Print data2000044Code400000
20Print data4000045Code800000
21Print data8000046Over input (See page 68)
22Code147Minus input
23Code248Reserved
24Code449Strobe input
25Code850Reserved
44
Codes for BCD data input
Note
Binary numberHexadecimal numberPrint
MSB LSB
0000
5. Optional interface
Character
0
0
1001
1010ASpace
1011BSpace
1100CSpace
1101D
1110ESpace
1111FSpace
- 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.
9
‐ (Hyphen)
9
45
5. Optional interface
Input equivalent circuit
TTL open collector output
*
IC=0.5mA
IN
short-circuited when IN is ‘H’
toggle
relay
transistor
IN
approx.
Logic Negative Positive
OpenOFFON
ShortONOFF
Vcc
← inside
COM
push
switch
+5V
1
outside →
M252A
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).
46
Read command
Data
Valid dataValid data
MAX. 5ms
MIN. 15ms
MAX. 5ms
MIN. 15ms
Read
ON
OFF
MIN. 10ms
When ON continues for 1 sec or more
MIN. 10ms
OFF
ON
Approx. 100
ms
100ms100
ms
100ms
100
ms
100ms100ms
SamplingSampling
OFF
ON
1 sec or more
Sampling
1 sec or more1 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
or more
command
1 sec or more
Approx.
1 sec or more
5. Optional interface
47
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 setting41: BCD Decimal Point Position
Selection item0. *.****
1. **.***
2. ***.**
3. ****.*
4. ***** (initial value)
Select a BCD input logic.
Name of setting42: BCD Data Logic
43: BCD Minus Logic
44: BCD Over Logic
45: BCD Strobe Logic
Selection item0. Negative logic
1. Positive logic
Initial value0. Negative logic (all)
ReferenceLogic 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).
48
RS-232C interface(option)
1
2
3
4
5
6
7
8
9
RxD
RTS
CTS
SG
DTR
TxD
1
2
3
4
5
6
7
8
9
RxD
RI
CTS
RTS
DSR
SG
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/ODescription
1
‐
(Unused)
2INRxD
3OUTTxD
4OUT DTR
5*SG
6
‐
(Unused)
7OUTRTS
8OUTCTS
9
‐
(Unused)
(Unused)
(Unused)
(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 levelRS-232C spec
Transmission distanceApprox. 15m
Transfer system
Transfer speed1200, 2400, 4800 or 9600 bps selection
Bit configurationStart bit:1
CodeASCII
ConnectorD-Sub 9pin male (CN33)
Necessary settings46: RS-232C transmission rate
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
49
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 setting46: RS-232C Transmission Rate
Selection item0. 1200bps
CautionThe setting must be the same as the connecting equipment.
Select parity bit.
1. 2400bps
2. 4800bps
3. 9600bps (initial value)
Name of setting47: RS-232C Parity Bit
Selection item0. Even
1. Odd (initial value)
2. Non
CautionThe setting must be the same as the connecting equipment.
Select data/stop bit.
Name of setting48: RS-232C Data/Stop Bit
Selection item0. 7bit 1stop (initial value)
1. 7bit 2stop
2. 8bit 1stop
3. 8bit 2stop
CautionThe 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.
50
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
Received command
Select terminator.
Name of setting49: RS-232C Terminator
Selection item0. CR
1. CR+LF (initial value)
CautionThe 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 setting50: RS-232C Answer Mode
Selection item0. MODE 0 (M250 mode) (initial value)
1. MODE 1 (M252 mode)
ReferenceSelect 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.
CautionWhen 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.
51
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.
FA2CRLF
Command
Terminater
Code (6 digits)
Unused
Number : 0 - 9
English letter : A - Z
Katakana : ア - ン
Symbol : hyphen, slash, Space
{
Code name
FA2CRLF
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
52
Code table
Delete last data
FB0CRLF
FB1CRLF
FB2CRLF
FB3CRLF
FB9CRLF
FB4CRLF
FB6
CR
LF
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.
53
5. Optional interface
DC IN
+-
RedBlack
+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)
ConditionDC12VDC24V
WaitApprox.150mA rmsApprox.100mA rms
Print Every Approx.800mA rmsApprox.400mA rms
Current consumption
(max.)
10A peak
(Approx.2msec)
2A peak
(Approx.2msec)
54
※ When the histogram format is printed, current consumption is maximum.
Inrush current (25 ℃ ,With BCI option)
DC12VDC24V
800mA peak (150msec)1A peak (150msec)
Advanced use
6
Various functions of the M252A
■ Classification by code name
and code table56
■ Maintenance mode63
■ Over print68
■ Delete print70
■ Initialization71
■ ROM version print71
■ Date print72
55
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 charactersumbers, 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
56
Code name registration performance with front panel keys
>> Input Code A - ENT
>> Now Code A [ABC ]
operating
A
B
C
D
E
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
Press
Press
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.
57
6. Advanced use
Code table
Code table number Corresponding
code name
00S T U V
01F G H I
02N O P Q R
│
│
│
│
│
│
31J 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.
58
Maximum number of
code names
Method of
registration
Input formatCode## (00 - 63 to the last two digits)
Usable charactersNumbers, English letters, katakana,
Code
However,
namedesignateing
method
Registration
Call
32 code name for each ch. Ach (00 - 31) Bch (32 - 63)
Register under [24 (25): Code Table Ach (Bch)] in the
setting mode.
Code name###### (6 digits at maximum)
symbols (-, *, /, space)
Front panel keys, RS-232C, BCD input
Ach:00 ~ 31Bch:32 ~ 63
Ach:00 ~ 31Bch: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.
59
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).
60
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
CodeCode table
AchBchAchBch
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
AchBch
○○
××
××
Code table numbers can be selected through an option only to Ach. Selection cannot be made to Bch.
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
InputPrint
Print direction
ABCDE2 100kg
FGHIJ1 100kg
KLMNO
3 50kg
PQRST1 100kg
ABCDE1 50kg
KLMNO
2 100kg
UVWXYZ2 100kg
UVWXYZ1 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
-----------------------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.
68
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)
080100120
Lower TargetUpper
L printU print
(Example) When the target value is set at 100, and the range at 20.
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.
70
■ 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.5.00Op 232
Ver.5.00Op 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.
71
6. Advanced use
DATE 2000/07/04 23:19
Date print
Press[DATE] →[ENT] in the print mode, and the current time is printed.
72
Troubleshooting
7
■ Classification of trouble74
■ The printer does not operate properly75
■ The printer does not function properly77
■ Others78
73
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
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.
75
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
Trouble6
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).
76
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.
77
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).
78
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.
79
7. Troubleshooting
M E M O
80
■ Setting mode list82
■ Option setting mode list83
■ Maintenance mode list84
■ List of unit settings84
■ Character input table85
■ List of error messages86
■
Introduction of consumables and options
87
■ Product specifications of the M252A88
■ External views90
Appendix
81
Appendix
* Bold Character : Initial setting value
Setting mode list
No.Name of settingDetails of settingPage
01Date/TimeCurrent Date/Time24
02Print Data Selection Ach0. Gross
1. Net
2. Tare
3. Indicated
03Print Data Selection Bch0. Gross
1. Net
2. Tare
3. Indicated
04Unit Selection AchSee the "List of unit settings"(page 84)
(Initial value of kg)
05Unit Selection BchSee the "List of unit settings"(page 84)
(Initial value of kg)
06Print Every ON/OFF0. OFF
1. ON
07Print Every Format0. 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
08Automatic Print ON/OFF0. OFF
1. ON
09Interval Print ON/OFF0. OFF
1. ON
10Interval Seconds
11GT/ST Print Format0. Standard
12Types of Sub Totals0. Middle sub
13Histogram Target Value AchInitial value +0000034
14Histogram Range AchInitial value 9999834
15Histogram Target Value BchInitial value +0000034
16Histogram Range BchInitial value 9999834
17Standard Deviation
■ 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).
85
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.
86
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
87
Appendix
Product specifications of the M252A
Printer section
Printing system
Print speedApprox. 2.5 lines/sec. (approx. 60cps)
Number of print digits24 digits
Ink ribbonRibbon cassette
Printing paperRoll paper (PP350)
DurabilityMCBF 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 methodFront panel keys
Storage of set valuesSet values: Stored in NOV-RAM (nonvolatile memory).
Data: SRAM (backed up by a lithium battery).
SettingsSee "Setting mode list"(page 82).
Main functions
Printing methodsPrint 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 dataDate, 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
FunctionsGT/ST print, batch total, code classification, delete print, over