KEYENCE DL-RS1AFD-S User Manual

RS-232C Communication Unit

DL-RS1A

User's Manual (FD-S Edition)

Read this manual before using the system in order to achieve maximum performance. Keep this manual in a safe place for future reference.

96077E

Introduction

This manual provides an overview of the RS-232C communication unit DL-RS1A and describes the functions and procedures of the unit. Be sure to read this manual carefully to ensure safe performance and function of the unit. Keep this manual in a safe place for future reference. Ensure that this manual is passed to the end user.

Symbols

The following symbols alert you to important messages. Be sure to read these messages carefully.

It indicates cautions and limitations that must be followed during operation.

It indicates additional information on proper operation.

It indicates tips for better understanding or useful information.

It indicates a hazardous situation which, if not avoided, will result in death or serious injury.

It indicates a hazardous situation which, if not avoided, could result in death or serious injury.

It indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

It indicates a situation which, if not avoided, could result in product damage as well as property damage.

DANGER

WARNING

CAUTION

NOTICE

Important

Point

Reference

Safety Precautions

General Cautions

• At startup and during operation, be sure to monitor the functions and performance of the DL-RS1A for proper op erations.

•

We recommend that you take substantial safety measures to avoid any damage in the event that a problem occurs.

• Do not modify the DL-RS1A or use it in any way other than described in the specifications.

• When the DL-RS1A is used in combination with other instrum ents, functions and performance may be degraded,

depending on the operating conditions and surrounding environment.

• Do not use the DL-RS1A for the purpose of protecting the human body.

• Do not change the temperature drastically around the DL-RS1A and other devices including the accessories. Otherwise

condensation may be generated.

Handling Errors

Operating Precautions

■ Installation environment

To use the DL-RS1A correctly and safely, avoid installing it in the following locations. Failure to do so to may cause fire, electric shock, and malfunction.

• Locations that are humid, dusty, or poorly ventilated

• Locations with a high temperature, such as a place exposed to direct sunlight

• Locations where there are flammable or corrosive gases

• Location where the unit may be directly subjected to vibration or impact

• Locations where water, oil, or chemicals may splash onto the DL-RS1A

• Locations where static electricity is easily generated

■ Noise countermeasures

Isolate the unit from devices that generate high frequency electrical signals, power supply lines, or power lines. Otherwise, noise could cause a malfunction.

Turn off the power immediately in the following cases. Using the unit in abnormal conditions could cause fire, electric shock, or accident. Contact the nearest KEYENCE office for repair.

• If fluids including water, chemicals, or debris enter the unit

• If the unit is dropped or the case is damaged

• If abnormal smoke or odor is present

NOTICE

• Do not use the DL-RS1A with a voltage other than specified voltage, as this may cause fire, electric shock or equipment failure.

• Do not disassemble or modify the DL-RS1A. Doing so may cause fire or electric shock.

•

Be sure to turn off the power to the DL-RS1A and any connected devices before connecting or disconnecting the cables. Failure to do so may damage the unit.

• Do not turn off the power while setting a parameter. Otherwise, the settings may be partially or completely lost.

WARNING

NOTICE

Safety Precautions

General Cautions Handling Errors Operating Precautions

Installation environment Noise countermeasures

Before Using the Unit

Checking the Package Contents ............................................................................ .........2

Part Names and Functions....... ........................................................................................ 2

Connecting the Unit to Sensor Amplifiers

Mounting the Unit ............................................................................................................. 3

Mounting the unit on the DIN rail.................................................................................................3

Connecting the Unit to Sensor Amplifiers ........................................................................ 4

Available sensor amplifiers .........................................................................................................4

Connecting the DL-RS1A to DIN rail mount sensor amplifiers.................................................... 4

Connecting the Unit to External Devices

Communication Terminal Block ....................................................................................... 5

Terminal connection.................................................................................................................... 5

Connection wiring........................................................................................................................5

Optional cable............................................................................................................................. 5

Input circuit diagram ...................................................................................................................6

Communication Specifications

Communication Specifications.................................. .......................................................6

Sensor Amplifier ID Number Assignments.................................... ...................................6

DIN rail mount sensor amplifiers................................................................................................. 6

Panel mount sensor amplifiers.................................................................................................... 6

Commands and Responses

Overview of Commands and Responses...................................... ...................................7

Command format.........................................................................................................................7

Response ....................................................................................................................................7

Error response.............................................................................................................................8

Reading.................................... ........................................................................................ 8

Read from the specified sensor amplifier (SR command).......................................................... 8

Read all data from all sensor amplifiers (M0 command) ............................................................8

Read output states and data from all sensor amplifiers (MS command).................................... 9

Read with external input to the DRQ terminal (DRQ read)..........................................................9

Writing .............................................................................................................................. 9

Write to the specified sensor amplifier (SW command).............................................................. 9

Write to all sensor amplifiers (AW command)............................................................................. 9

Parameters of Commands and Responses

Coriolis Digital Flow Sensor FD-S Series................................ ........................................10

Communication commands ......................................................................................................10

ID numbers................................................................................................................................10

Data numbers............................................................................................................................10

Control outputs.......................................................................................................................... 12

Error numbers............................................................................................................................12

Communication Response Time

Communication Response Time and Time Chart ................................................... .......13

SR command.............................................................................................................................13

M0 command and MS command.............................................................................................. 13

DRQ input.................................................................................................................................. 14

SW command and AW command............................................................................................. 14

Time Frames of Communication Response Time ................................................... .......14

T2 (DL-RS1A data processing time) .........................................................................................14

T3 (Command send time from external device)........................................................................ 14

T4 (DL-RS1A command processing time) ................................................................................15

T5 (Response send time from DL-RS1A) ..................................................................................15

T6 (Sensor amplifier settings change time)...............................................................................15

Specifications

Performance Specifications ........................................................................................... 16

Communication Specifications.................................. .....................................................16

Dimensions................................................................ ..................................................... 16

When the unit is mounted on the DIN rail.................................................................................. 16

When the optional fixture (OP-60412) is used...........................................................................16

Troubleshooting

ASCII Code Table

96077E

Before Using the Unit

Checking the Package Contents

Before using the DL-RS1A, check that the following items are all included.

All possible care was taken in packaging before shipment. However, in the event of defective broken, or missing items, please contact your nearest KEYENCE office.

Part Names and Functions

End unit x 2

OP-26751

RS-232C communication unit

DL-RS1A

Expansion connector cover

Switch protection sticker

Instruction manual

102#345

Sensor amplifier connecto

(for panel mount type/ large display type)*

2N345

* A sticker is attached as factory default.

4. Communication status indicators (green)

5. Alarm indicator (red)

6. Read/write setting switch

7. Power indicator (green)

8. Communication terminal block

Communication setup switch

Sensor amplifier connector

(for DIN rail mount type)

Before Using the Unit

(1) Communication setup switches

You can use different ON/OFF combinations to configure the communication settings.

• Make sure you cycle the power to the unit after modifying the communication settings. The modifications are not applied to the unit until it is powered down and power has been reapplied.

• Place the switch protection sticker supplied with the unit over the switches after you modify the settings.

(2) Sensor amplifier connector (for DIN-rail mount type)

Use this connector to connect DL-RS1A to a DIN-rail mount type sensor amplifier.

(3) Sensor amplifier connector (for panel mount type)

Use this connector to connect DL-RS1A to a panel mount type sensor amplifier. The optional extension cable (OP-35361) must be used for connection.

You cannot connect DL-RS1A simultaneously to a DIN-rail mount type sensor amplifier and a panel mount type sensor amplifier.

(4) Communication status indicators

These indicators show the communication status of DL-RS1A.

Setting Switch No. Combination

Baud rate

* Factory default positions are shown.

Do not use combinations other than those shown above for switches 1, 2, and 3.

Data bit length

* Factory default positions are shown.

Parity

* Factory default positions are shown.

ON ON

123 123 123 123 123

2400bit/s 4800bit/s

9600bit/s*19200bit/s 38400bit/s

Important

ON4ON

8 bit* 7 bit

ON56ON56ON56ON

None* Even Odd None

Important

Switch protection sticker

Point

Indicator Behavior

SD Lights up in green while data is being transmitted. RD Lights up in green while data is being received.

Before Using the Unit

(5) Alarm indicator

This indicator lights up in red. For information on the actions you should take when an alarm occurs, refer to "Troubleshooting" (page 17). After turning on the power, the alarm indicator lights for the following amount of time, and communication cannot be performed during this time.

(6) Read/write setting switch

Use this switch to allow or prohibit writing to the sensor amplifiers. (You can only manipulate this switch while the unit is active (turned on).)

(7) Power indicator

Lights up in green when the unit has power.

(8) Communication terminal block

Use the terminals on the terminal block to attach communication cables for connecting the unit with external devices.

* Recommended communication cable

KPEV-SP(1P) wire with balanced type twisted shield (strand wire) Nominal cross-section area 0.16mm

(AWG25) min.

A terminal cover is attached to the terminal block. The terminal cover must be placed over the terminal block when you finish connecting the cables.

The terminals for SG (Nos. 1, 4, and 5) are used in common with the blue wire of the sensor am plifier main unit.

No. of connected units Incommunicable time

1 to 5 Approx. 2 s

6 to 10 Approx. 4 s

11 to 15 Approx. 6 s

Position of the switch Description

(Factory default position)

The unit can read data from the sensor amplifiers. However, it cannot write settings to the sensor amplifiers.

The unit can both read data from and write settings to the sensor amplifiers.

DRQ

Communication cable

To external device

KPEV-SP(1P) wire with balanced type twisted shield (strand wire)

Terminal No.

Term inal Description

1SG

Connects to the shielded wire of the communication cable.

The terminals for SG (Nos. 1, 4, and 5) are internally shor t-circuited. 2 RD (input) Connects to the SD terminal of an external device via a co mmunication cable. 3 SD (output) Connects to the RD terminal of an external device via a communication cable. 4 SG The terminals for SG (Nos. 1, 4, and 5) are internally short-circuited. 5 SG The terminals for SG (Nos. 1, 4, and 5) are internally short-circuited.

6 DRQ (input)

When there is a short-circuit between DRQ and SG, the sensor amplifier data is

transmitted even without a command from the external device.

Point

Reference

Connecting the Unit to Sensor Amplifiers

This section describes how to mount a DL-RS1A and connect it to sensor amplifiers.

Mounting the Unit

■ Mounting the unit on the DIN rail

1 Fit the tab of the lower part of the unit to the

DIN rail. While inserting the unit in the

direction of arrow (1), push the body down in

the direction of arrow (2).

2 To detach the unit, lift the unit in the direction

of arrow (3) while pushing it in the direction

of arrow (1).

When using the mounting bracket (OP-60412), install it as shown in the illustration below.

(1)

(3)

(2)

Mounting bracket：OP-60412

Connecting the Unit to Sensor Amplifiers

You use DL-RS1A by connecting it to sensor amplifiers. The connection method varies according to the mounting type of the sensor amplifiers. Before connecting DL-RS1A, you must install the main unit and expansion units of the sensor amplifiers. For information on installing the sensor amplifiers, refer to the user's manual supplied with the sensor amplifiers.

■ Available sensor amplifiers

*1 You cannot connect DL-RS1A to panel mount sensor amplifiers. *2 Do not use the FD-S Series in combination with other series.

Make sure that the sensor amplifiers are turned off before connecting the RS232C communication unit DL-RS1A to them. Connecting the unit while the sensor amplifiers are turned on may damage the unit.

Name Type of amplifier Main unit

Expansion unit

Max. connectable number

Coriolis Digital Flow

Sensor

FD-S Series

*1 *2

DIN rail mount

FD-SA1N

FD-SA1P FD-SA1N(A) FD-SA1P(A)

FD-SA2N

FD-SA2P FD-SA2N(A) FD-SA2P(A)

5 units (Main: 1, Expansion: 3, DL-RS1A: 1)

NOTICE

Connecting the Unit to Sensor Amplifiers

■ Connecting the DL-RS1A to DIN rail mount sensor amplifiers

1 Remove the expansion protective cover from the sensor amplifier that you want to connect to

the DL-RS1A.

2 Mount the DL-RS1A on the DIN rail and connect it to the sensor amplifier.

Make sure there is no space between the unit and the sensor amplifier.

3 Mount the end units (OP-26751, two units included) on either side of the sensor amplifier and

DL-RS1A unit and tighten the two screws on the top of each end unit.

(You can mount the end units in the same way you mount DL-RS1A.)

Sensor amplifier

Expansion protective cove

Sensor amplifier

DL-RS1

Connector

Check that the sensor amplifier connector (for DIN rail mounting) located on the side of DL-RS1A is not installed at an angle as shown in the illustration to the right. Connecting the unit with its connector installed at an angle to a sensor amplifier may damage the unit.

NOTICE

Sensor amplifier connector

RS-232C communication unit DL-RS1

End unit

Make sure you firmly insert DL-RS1A all the way into the sensor amplifier. Turning the power on when the unit is not inserted straight or firmly connected may damage the unit.

NOTICE

Connecting the Unit to External Devices

Communication Terminal Block

You can connect external devices such as a PC or PLC to the communication terminal block of DL-RS1A via the communication cables.

■ Terminal connection

* Recommended communication cable

KPEV-SP(1P) wire with balanced type twisted shield (strand wire) Nominal cross-section area 0.16mm

(AWG25) min.

A terminal cover is attached to the terminal block. The terminal cover must be placed over the terminal block when you finish connecting the cables.

The terminals for SG (Nos. 1, 4, and 5) are used in common with the blue wire of the sensor am plifier main unit.

● Crimp-type terminal

Use the Y or round terminal for wiring to the I/O terminal. Use the Y or round terminal with the following dimensions.

Y terminal

Round terminal

DRQ

Communication cable

To external device

KPEV-SP(1P) wire with balanced type twisted shield (strand wire)

Terminal No.

Term inal Description

1SG

Connects to the shielded wire of the communication cable.

6 DRQ (input)

When there is a short-circuit between DRQ and SG, the sensor amplifier data is

transmitted even without a command from the external device.

Point

Reference

Excerpted from dimensions of the Y terminal areas B: Outer size of Y area d: Width of inner Y area

(joint area with screw)

Applicable dimension B: 6mm max. d: 3.2mm min.

Excerpted from dimensions of the round terminal areas B: Outer diameter d: Inner diameter

(joint area with screw)

Applicable dimension B: 6mm max. d: 3.2mm min.

φd

Connecting the Unit to External Devices

■ Connection wiring

Refer to the connection wiring diagram shown below when connecting DL-RS1A to an external device such as a PC.

• The length of the communication cable must not exceed 15 m.

•

Connect the shield wire of the communication cable to the SG terminal of the external device.

• Make sure that the shield wire does not touch other signal wires or the other terminals on the terminal block.

■ Optional cable

An optional cable shown below is used to connect to an external device such as a PC that has a D-sub 9-pin I/O connector.

Part number: OP-81283

Pin layout for D-sub 9-pin connector

*1 Pin numbers 4 and 6 are connected inside the connector. *2 Pin numbers 7 and 8 are connected inside the connector. *3 Two cables (black and black/white) are connected to the pin number 5.

DR ER RS CS SG

3 4 5 6

SD SG SG

DRQ

DL-RS1A

External device

(D-sub 9-pin)

Shield

Point

Pin No. Cable color

12 Red/white 3Red 4

5 Black, black/white

6*17

33.2 25

5000

39.5 1

φ7.1

Front

Connecting the Unit to External Devices

Sample wiring

*1 Insulate either the black or black/white cable that is not used. *2 Connect the shield wire to the SG terminal of DL-RS1A. (Shield wire is connected to the

connector casing.)

The green and green/white-striped wires are not connected to any of the connector pins.

■ Input circuit diagram

* The terminals for SG (Nos. 1, 4, and 5) are connected internally with the blue wire of the sensor

amplifier main unit.

2 3 4 5 6 7

Red/White

Red

SD DR SG ER RS

8CS

3 4 5 6

SD SG SG

DRQ

Black, Black/White

DL-RS1A

(Communication terminal block)

External device

(D-sub 9-pin)

Shield

Reference

Main circuit

(Short-circuit current: 1 mA max.)

6 (DRQ)

+5V

1,4,5 (SG)

Communication Specifications

This section provides the communication specifications of DL-RS1A and describes how to configure the unit.

Communication Specifications

The following table lists the communication specifications for DL-RS1A.

For communication settings, refer to pa ge 2.

Sensor Amplifier ID Number Assignments

When the main sensor amplifier that is connected to DL-RS1A supports expansion units, the main sensor amplifier ID number "00" is automatically assigned to the main unit and ID numbers "01 to 14" to the expansion units.

You cannot change the assignment of sensor amplifier ID numbers.

■ DIN rail mount sensor amplifiers

■ Panel mount sensor amplifiers

Item Specifications

Communication method Full duplex Synchronization method Asynchronous Transmission code ASCII Communication speed 2400, 4800, 9600, 19200, 38400 bit/s (Factory default: 9600 bit/s) Data bit length 7 or 8 bits (Factory default: 8 bits) Parity check None, even, odd (Factory default: none) Stop bit length 1 bit

Data delimiter

Receive: automatically detect CR or CR + LF Send: fixed to CR + LF

Point

ID No. 00

Main Exp. Exp. Exp. Exp.

01 02 13 14

Sensor amplifier DL-RS1A

ID No. Sensor amplifier

Main

Exp.

Sensor amplifier

Exp.

DL-RS1A

Commands and Responses

Overview of Commands and Responses

■ Command format

You can send specific commands based on ASCII codes from an external device to DL-RS1A. For information on the parameters used in the command, refer to "Parameters of Commands and Responses" (page 10).

Sample command format structure

(1) With the first two bytes, specify the communication command. (2) Specify the ID number assigned to the target sensor amplifier using two digits (ASCII characters). (3) Specify the data number for the data you want to read from or write to the sensor amplifier using

three digits (ASCII characters).

(4) Insert CR or CR + LF as the command delimiter.

You must use commas (,) to separate (1), (2), and (3).

To read the "Detection mode (data number: 101)" from an expansion unit of an active GT-70A Series (ID number: 06):

From an external device, 11-byte data will be sent to the DL-RS1A.

The last byte of the command you send must be CR (0DH) or LF (0AH). Specifying a value other than CR or LF results in an error response (error number: 00). For information on the error responses, refer to "Error numbers" (page 12).

ID No. 00

Main Exp. Exp. Exp. Exp.

01 02 13 14

Sensor amplifier DL-RS1A

External device like PLC or PC

Response

error response

Command or DRQ input

(1) (2) (3) (4)

R CR LFID No. Data No.

Important

Example

(53H) (52H) (2CH)(31H) (30H) (31H)(0DH)(0AH)(2CH)(30H) (36H)

R CR LF0 6 1 0 1

Command :

(53H)

(2CH)

(52H)

(30H)

(36H)

(31H)

(2CH)

(30H)

(31H)

(0AH)

(0DH)

ASCII character conversion :

Data memory 0

Data memory 1

Data memory 2

Data memory 3

Data memory 4

Data memory 5

→ 5352

Value to store in data memory (hexadecimal)

→ 2C30H

→ 362CH

→ 3130H

→ 310DH

→ 0A00H

bit 15

bit

Important

Commands and Responses

■ Response

When DL-RS1A successfully receives a command from the external device, it automatically returns a response based on ASCII codes. For information on the parameters used in the response, refer to "Parameters of Commands and Responses" (page 10).

Sample response structure

(1) Contains the same communication command as the received command. (2) Contains the same ID number as the received command. (3) Contains the same data number as the received command. (4) Contains the data that DL-RS1A retrieved from the specified sensor amplifier. Contains maximum

of 10 bytes according to the specified data number (3).

(5) Contains CR + LF as the response delimiter.

When the command format "SR,06,101CRLF" is sent to the GT-70A (ID number: 06) in operation and the response indicating that the Detection mode is "Peak hold" is received:

DL-RS1A sends the response to the external device.

(1) (2) (3) (4) (5)

R ID No. Data No.

CR LFData

Example

(53H) (52H) (2CH)(31H) (30H) (31H)(2CH)(3CH) (36H)

R 0 6 1 0 1

(2CH)(32H) (0DH) (0AH)

2 CR LF

Response format :

Peak hold

(53H)

(2CH)

(52H)

(30H)

(36H)

(31H)

(2CH)

(30H)

(32H)

(0AH)

(0DH)

ASCII character conversion:

5352

H →

Value to store in data memory (hexadecimal)

2C30H →

362C

H →

3130

H →

320D

H →

0A00

H →

bit 15

bit

(31H)

312CH →

(2CH)

Commands and Responses

■ Error response

If DL-RS1A could not receive a command from the external device or if the received command included an error, it automatically returns an "error response" based on ASCII codes. For information on the parameters used in the error response, refer to page 10.

Sample error response structure

(1) Contains "ER". (2) Contains the same communication command as the received command. (3) Contains a two-digit error number (ASCII characters) indicating the error type.

For information on the error numbers, refer to "Error numbers" (page 12).

(4) Contains CR + LF as the error response delimiter.

An error response indicating an "ID number error" as a response to the command "SR,06,101CRLF":

DL-RS1A sends the error response to the external device.

(1) (2) (3)

Error No.

(4)

CR LF

Example

(45H) (52H) (2CH)(2CH)(53H) (52H)

R S R

(36H) (35H)

6 5

Error response :

ID No. error

(45H)

(2CH)

(52H)

(53H)

(52H)

(36H)

(2CH)

(35H)

(0DH)LF(0AH)

ASCII character conversion :

4552

H →

Value to store in data memory

2C53H →

522C

H →

3635

H →

0D0A

H →

bit 15

bit

(0DH) (0AH)

CR LF

Commands and Responses

Reading

External devices such as PLC's use the following communication commands to read data from DL-RS1A.

■ Read from the specified sensor amplifier (SR command)

Command

Response

Error response

* The data length is different depending on the data being read. (Up to 10 characters)

■ Read all data from all sensor amplifiers (M0 command)

Command

Response

Error response

* The data length is different depending on the model.

SR CR LFID No. Data No.

SR Data*ID No. Data No.

,, ,

CR LF

ER,SR

Error No.,CR LF

M 0 CR LF

M0 CR LF

Data of the sensor amplifier with ID:00*

Data of the sensor amplifier with ID:01*

……

Data of the sensor amplifier with the last ID No.*

ER CR LF

,M0,

Error No.

Commands and Responses

■

Read output states and data from all sensor amplifiers (MS command)

Command

Response

Error response

* The data length is different depending on the model.

■ Read with external input to the DRQ terminal (DRQ read)

You can send an input signal (by short-circuiting DRQ (terminal number 6) and SG (terminal number 1, 4, or 5)) from an external device such as a PLC instead of sending a command.

Response

Error response

* The data length is different depending on the model.

M S CR LF

Control

output

Control

output

Control

output

CR LF

Data of the sensor amplifier with ID:00*

,, ,,

Data of the sensor amplifier with ID:01*

…

Data of the sensor amplifier with the last ID No.*

Sensor amplifier with ID:00 Sensor amplifier with ID:01 Sensor amplifier with the last ID No.

** *

ER CR LF

,MS,

Error No.

2 ms min.

Input signal

OFF

SG RD SD SG SG

DRQ

Control output

Control

output

Control

output

CR LF

Data of the sensor amplifier with ID:00*

,, ,,

Data of the sensor amplifier with ID:01*

…

Data of the sensor amplifier with the last ID No.*

Sensor amplifier with ID:00 Sensor amplifier with ID:01 Sensor amplifier with the last ID No.

** *

ER CR LF

,DR,

Error No.

Commands and Responses

Writing

External devices such as PLC's use the following communication commands to write data to DL-RS1A.

Attempting to write data with "read-only" attribute results in a communication error and an error response (error number: 22).

■ Write to the specified sensor amplifier (SW command)

Command

Response

Error response

* The data length is different depending on the data being written.

■ Write to all sensor amplifiers (AW command)

Command

Response

Error response

* The data length is different depending on the data being written.

Point

SW CR LFID No. Data No.

Setting data*

SW CR LFID No. Data No.

ER CR LF

,SW,

Error No.

AW CR LFData No.

Setting data*

AW CR LFData No.

ER CR LF

,AW,

Error No.

Parameters of Commands and Responses

This section describes the parameters used with various commands and responses.

Coriolis Digital Flow Sensor FD-S Series

■ Communication commands

There are two types of communication commands: read commands and write commands.

■ ID numbers

This parameter is used with communication commands "SR" and "SW". Specify the ID number of the target sensor amplifier using two digits (ASCII characters). Example: Sensor amplifier of ID number 00 = 00, sensor amplifier of ID number 02 = 02

Communication

command

Attribute Description

Read

Reads the data for the specified data number from the sensor amplifier with the specified ID number.

Reads all of the instantaneous flow rate (current value) data that DL-RS1A periodically retrieves from all sensor amplifiers.

Reads the control output state and instantaneous flow rate (current value) data that DL-RS1A periodically retrieves from all sensor amplifiers.

Reads the control output state and instantaneous flow rate (current value) data that DL-RS1A periodically retrieves from all sensor amplifiers when a DRQ input is received.

Write

Writes setting data for the specified data number into the sensor amplifier with the specified ID number.

AW Writes setting data for the specified data number into all sensor amplifiers.

Parameters of Commands and Responses

■ Data numbers

Specify the data number using three digits (ASCII characters).

● Read-only data

The following table lists the types of data that can only be read from FD-S Series sensor amplifiers.

Writing read-only data results in a communication error (error number: 22).

*1 In the Data format column, "*" signifies a number from "0 to 9". *2 R: Indicates that the data type can only be read from the sensor amplifiers. *3 Regardless of the display mode setting specified on the sensor amplifier, this is the data during

the “rESo” mode.

*4 Regardless of the integration display unit specified on the sensor amplifiers, the data is read

with the minimum display unit. When the integrated flow quantity exceeds the indicated maximum value, the maximum value is returned as the data.

Data

number

Data name

Data format

Data range

0.2L 1L, 2L 8L, 20L 0.2L 1L 2L 8L 20L

000

Instantaneous flow rate

±***.* ±**** ±**.**

-400.0 to +400.0

-2000 to +2000

-4000 to +4000

-16.00 to +16.00

-40.00 to +40.00

001

Integrated flow quantity (Original Method)

±********.* ±********* ±*******.**

-21474836.4 to +21474836.4

-214748364 to +214748364

-2147483.64 to +2147483.64

002

Instantaneous flow rate (peak hold value)

±***.* ±**** ±**.**

-400.0 to +400.0

-2000 to +2000

-4000 to +4000

-16.00 to +16.00

-40.00 to +40.00

003

Instantaneous flow rate (bottom hold value)

-400.0 to +400.0

-2000 to +2000

-4000 to +4000

-16.00 to +16.00

-40.00 to +40.00

004

Instantaneous density

**.** 00.00 to 99.99

005

Output terminal state

Bit0: output 1 (ON at 1) Bit1: output 2 (ON at 1) Bit2: output 3 (ON at 1)

006

Input terminal state

0: OFF, 1: ON

007

Bank switching state

0: bank A; 1: bank B

008 Error state **** 0 to 2604

009

Connected sensor head (quality)

0: SUS 1: PFA

1: PFA

0: SUS 1: PFA

1: PFA 0 : SUS

010

Connected sensor head (capacity)

0: 0.2L 1: 2L(Foc) 3: L(Foc)

3ÅF1L

1: 2L 2: 20L(Foc) 4: 8L(Foc)

4: 8L 2: 20L

011

Integrated flow quantity (Corresponding to the A-Ver)

±********.** ±*********.* ±*******.***

-21474836.48 to +21474836.47

-214748364.8 to +214748364.7

-2147483.648 to +2147483.647

015

Temperature (current value)

±***.* 000.0 to 099.9

016

Temperature (peak hold value)

017

Temperature (bottom hold value)

019

Shift system processing results

* 0: normal termination; 1: abnormal termination

Point

Parameters of Commands and Responses

*5 The data number “008” can be read to check the error status of the sensor amplifiers.

Convert the five digit number (ASCII characters) read from the sensor amplifiers to a binary number and check the ON/OFF state of each bit to check the error contents.

For information on each error, refer to "FD-S Series User's Manual".

•

When the data read from a sensor amplifier is "1056": "1056" converted to binary number is "0000 0100 0010 0000".

Therefore, this data indicates that the "temperature low error" and the "reverse current error" have occurred at the same time on the sensor amplifier from which the data was read.

•

If no error has occurred at the sensor amplifier, the data "0000" is returned.

*6 When the data falls below 0, this indicates "-999.9", and when the data exceeds 99.9, this

indicates "+999.9".

Bit Error contents of sensor amplifiers

0 Not used 1 Head connection error (ErH) 2 Overcurrent error (ErC) 3 EEPROM error (ErE) 4 Empty pipe error (Erd) 5 Reverse current error (rEv) 6 Not used 7 Not used 8 Not used

9 Drive gain error 10 Temperature low error 11 Temperature high error

12 to 15 Not used

Reference

Bit 10: Temperature low error Bit 5: Reverse current error

Parameters of Commands and Responses

● Read/write data

The following table lists the types of data that can be read from and written to FD-S Series sensor amplifiers.

Data

number

Data name

Data format

Data range

0.2L 1L, 2L 8L, 20L 0.2L 1L 2L 8L 20L

020 Integrated flow reset request

0: Disable integrated flow reset

1: Integrated flow reset

Lead: Last written value

021

Instantaneous flow hold value reset requ est

0: Disable hold reset

1: Hold reset

Lead: Last written value

022

Temperature hold value reset request

0: Disable temperature hold reset

1: Temperature hold reset

Lead: Last written value

023 Zero adjustment request 0o1: Perform zero adjustment

024 Request initial reset (SLct) 0o1: Conduct initial reset (SLct) 030

Instantaneous flow rate setting 1

***.* **** **.**

000.0 to

400.0

0000 to

2000

0000 to

4000

00.00 to

16.00

00.00 to

40.00

031

Instantaneous flow rate setting 2

032

Instantaneous flow rate setting 3

033

Instantaneous flow rate setting 4

034

Integrated flow quantity setting 1

**** 0000 to 99 99

035

Integrated flow quantity setting 2

036 Temperature setting lower limit

***.*

000.0 to 099.9

037

Temperature setting upper limit

000.1 to 100.0

038

Specified density for voL.S

**** 0300 to 20 00

040 Detection mode

0: F-1 1: F-2

2: F-3 3: A-1 4: A-2

041 Integration direction

0: Increment

1: Decrement

042

Time-out time for output 2 (unit: s)

** 1 to 99

043 Output mode

Bit0: Output1 (1: N.C.) Bit1: Output2 (1: N.C.) Bit2: Output3 (1: N.C.)

044

Integrated flow quantity u nit (Original Method)

1: 0.1

2: 1

3: 10 4: 100 5: 1000

7: (1L(Foc) is

fixed to 7)

7: Fixed

2: 1

3: 10

4: 100 5: 1000 6: 10000

7: (8L(Foc) is

fixed to 7)

7: Fixed

0: 0.01

1: 0.1

2: 1

3: 10

4: 100

045 Response time

0: 0.05s

1: 0.1s

2: 0.5s

3: 1.0s

4: 2.5s

5: 5.0s 6: 10.0s 7: 30.0s 8: 60.0s

046 Display mode

0: Std

1: rESo

047 Hysteresis ***.* **** **.**

000.0 to

200.0

0000 to 1000 0000 to 2000

00.00 to

08.00

00.00 to

20.00

048

Input terminal function

0: OFF

1: Bank switching

2: Flow rate zero 3: Zero adjustment 4: Integration reset

049

Flow indicator color (Can set at 1L or 8L, however ignore)

0: Red for ON, green for OFF 1: Green for ON, red for OFF

050

Power save mode

0: OFF

1: ON

2: FULL

051

Analog output selection

0: Standard

1: Free range analog

Parameters of Commands and Responses

*1 In the Data format column, "*" signifies a number from "0 to 9". *2 Indicates that the data can only be read from (R), can only be written to (W), or can be both read

from and written to (R/W) the sensor amplifiers.

*3 Since each reset request is a level action, resets are continuously performed as long as the

value is set to 1. Make sure you send a command format that writes 0 to the sensor amplifiers again after receiving a response format.

*4 The command is executed only when the setting of the amplifier is changed from 0 to 1. To

execute the command again, write 0 once and then write 1, or the command is not executed.

*5 Regardless of the display mode specified on the sensor amplifiers, the range of configurable

data is the same as the "rESo" mode.

*6 When setting this value to 000.0, no alarm output is made even if the temperature falls below the

indicated temperature setting lower limit; an alarm output is made only when the temperature exceeds the upper limit.

*7 When setting this value to 100.0, no alarm output is made even if the temperature exceeds the

indicated temperature setting upper limit; an alarm output is made only when the temperature falls below the lower limit.

*8 To read or write this data type, the analog output of the sensor amplifiers must be set to "Free

range analog" (using data number 051). Changing the Free range analog upper limit/lower limit is invalid when the analog output is set to

"Standard". *9 When not performing zero cut (OFF setting), set the data to 0. *10 Set the low density zero cut function to ON (Data No. "058").

When the low density zero cut level is set to OFF, the zero cut level is invalid even if it is set. *11 This item is reflected during initial reset (data number 060).

052

Free range analog lower limit

*** **** **.* 000 to 400

0000 to 2000

(last 1 digit

is fixed to 0)

0000 to 4000

(last 1 digit is fixed to 0)

00.0 to 16.0 00. 0 to 40.0

053

Free range analog upper limit

054

Keylock function *

0: Unlock 1: Locked

055

Integrated flow quantity u nit (Corresponding to the A-Ver)

1: 0.01

(1L(Foc) only)

2: 0.1

3: 1

4: 10 5: 100 6: 1000

2: 0.1

3: 1 4: 10

5: 100 6: 1000 7: 10000

2: 0.1

(8L(Foc) only)

3: 1

4: 10

5: 100 6: 1000 7: 10000

0: 0.001

1: 0.01

2: 0.1

3: 1

4: 10

5: 100

1: 0.01

2: 0.1

3: 1

4: 10

5: 100

056

Display averaging **.* '00.0 to 10.0 (0.5 increments)

057

Zero cut level ***.* **** **.**

000.0 to

400.0

0000 to

2000

0000 to

4000

00.00 to

16.00

00.00 to

40.00

058

Density zero cut function

*10

0: OFF

1: ON

059

Density zero cut level

*10

*.** 0.01 to 2.00

060

Request initial reset(ALL) * 0o1: initial reset (ALL) *11 will also be reflected

066

Volume/weight flow quantity selection

*11

0: Weight flow quantity

1: Volume flow quantity (Specified density)

2: Volume flow (Instantaneous density)

067

Tow ard s f lo w

*11

0: std

1: vEv

070

Specified focus

*11

0: OFF

1: ON

Data

number

Data name

Data format

Data range

0.2L 1L, 2L 8L, 20L 0.2L 1L 2L 8L 20L

Parameters of Commands and Responses

■ Control outputs

This parameter is used with communication command "MS" and DRQ input. Specify the ON/OFF state of the control output, integrated pulse output, and error alarm output using a one-digit value (ASCII character).

■ Error numbers

The following table lists the error numbers that are returned as error responses when errors occur in the communication between DL-RS1A and FD-S Series sensor amplifiers. Each error number is identified with two digits (ASCII characters).

Data Description

0 Outputs 1, 2, 3 OFF 1 Output 1 ON, 2 OFF, 3 OFF 2 Output 1 OFF, 2 ON, 3 OFF 3 Output 1 ON, 2 ON, 3 OFF 4 Output 1 OFF, 2 OFF, 3 ON 5 Output 1 ON, 2 OFF, 3 ON 6 Output 1 OFF, 2 ON, 3 ON 7 Outputs 1, 2, 3 ON

Error No.

Error name Problem Action

Invalid command error

An invalid command was received.

Make sure that the external device has sent a command listed in "Communication commands" (page 10).

20 Data length error

Data with the correct length was not received.

Make sure that the external device has sent either "CR" or "CR + LF" as a data delimiter.

Number of parameters error

The correct number of parameters for the command was not received.

Make sure that the number of parameters and the positions of the commas used as data delimiters conform to the command format shown in "Commands and Responses" (page 7).

22 Parameter error

A parameter exceeds its range of value.

The external device is trying to write a data type that cannot be written.

The external device is trying to read a data type that cannot be read.

· The data format is incorrect.

Make sure that the external device is sending a command listed in "Communication commands" (page 10).

The sensor amplifiers are being factory reset (initialized) or in the start-up process after the power is turned on.

Resend the command after the factory reset (initialization) or start-up process is

complete. The separate display unit is not connected to the sensor ("ErH" is displayed).

Check the connection to the sensor.

29 Communication error

An error was detected with RS232C communication.

Make sure that DL-RS1A and the external

device have the same communication

settings configured. For information on

configuring DL-RS1A, refer to "(1)

Communication setup switches"

(page 2)

65 ID number error

The ID number specified with the command is incorrect.

Make sure that the sent data specified as

the ID number is a 2-digit number (ASCII

characters) according to the number of

connected units.

Parameters of Commands and Responses

66 Expansion line error

The communication could not be established due to a problem with an expansion line.

Check if the separate display unit is

connected. Correctly connect it by

referring to "Connecting the Unit to

Sensor Amplifiers" (page 3). Check that

the connected sensor amplifier is

compatible with the DL-RS1A (refer to

page 4).

67 Write control error DL-RS1A is not in a writable state.

Change the read/write setting switch to

the R/W position to enable writing to DL-

RS1A. For information on the read/write

setting switch, refer to

"Part Names and

Functions" (page 2).

Error No.

Error name Problem Action

Communication Response Time

This section describes the communication response time for each communication command and various time frames.

Communication Response Time and Time Chart

This section describes the concept of communication response time and the time chart for the communication commands.

When sending communication commands consec utively from the external device, wait to send the next command after reception of the response for the previous command from DL-RS1A completes.

■ SR command

The SR command directly reads data from a sensor amplifier during T4 (DL-RS1A command processing time).

Time chart

■ M0 command and MS command

The M0 and MS commands read the buffered data that DL-RS1A periodically retrieves from the sensor amplifiers. Therefore, the latest data detected by the sensors can only be read after T2 (DL-RS1A data processing time) where DL-RS1A retrieves data from the sensor amplifiers.

Point

External device

DL-RS1A

T3: Command format send time from external device T4: DL-RS1A command processing time T5: Response send time from DL-RS1A

* For the specific values (times) of T3 to T5, refer to

"Time Frames of Communication Response Time" (page 14).

Sensor amplifier

DL-RS1A

External device

T1: Sensor amplifier response time (Refer to the instruction manual of the sensor amplifier.) T2: DL-RS1A data processing time T3: Command format send time from external device T4: DL-RS1A command processing time T5: Response send time from DL-RS1A

Detection

* For the specific values (times) of T2 to T5, refer to

"Time Frames of Communication Response Time" (page 14).

Communication Response Time

■ DRQ input

The data read in response to a DRQ input is the buffered data that DL-RS1A periodically retrieves from the sensor amplifiers. Therefore, the latest data detected by the sensors can only be read after T2 (DL-RS1A data processing time) where DL-RS1A retrieves data from the sensor amplifiers.

Time chart

■ SW command and AW command

The SW and AW commands are write commands.

Time chart

When reading the data applied by settings written to the sensor amplifier with the SW command or AW command, using the commands (M0, MS) or DRQ inputs, perform reading after the above "T2 (DL-RS1A data processing time)" elapses.

Sensor amplifier

DL-RS1A

DRQ input

Detection

↓

2 ms min.

T1: Sensor amplifier response time (Refer to the instruction manual of the sensor amplifier.) T2: DL-RS1A data processing time T4: DL-RS1A command processing time T5: Response send time from DL-RS1A

* For the specific values (times) of T2 to T5, refer to

"Time Frames of Communication Response Time" (page 14).

External device

DL-RS1A

Sensor amplifier

T3: Command format send time from external device T4: DL-RS1A command processing time T5: Response send time from DL-RS1A T6: Sensor amplifier setting change time

* For the specific values (times) of T3 to T6, refer to

"Time Frames of Communication Response Time" (page 14).

Point

Communication Response Time

Time Frames of Communication Response Time

This section describes the communication time frames (T2 to T6).

The maximum time required is shown for each time frame. However, depending on the actual environment, it may require more time.

■ T2 (DL-RS1A data processing time)

For information on the calculation function, refer to the manual supplied with the sensor amplifiers.

● When calculation function of sensor amplifiers is OFF

* This table also applies to the sensor amplifiers that do not have the calculation function.

● When calculation function of sensor amplifiers is ON

■ T3 (Command send time from external device)

Refer to the manual supplied with the external device connected to DL-RS1A.

Reference

Number of connected

sensor amplifiers

Data processing time (T2)

FD-S Series

17 ms 29 ms 313 ms 415 ms

Number of connected

sensor amplifiers

Data processing time (T2)

FD-S Series

1 10.5 ms 2 13.5 ms 3 19.5 ms 4 22.5 ms

Communication Response Time

■ T4 (DL-RS1A command processing time)

The processing time varies according to the command sent from the external device.

● Read commands

When using the SR command, 20ms will be added to the graph/table values.

● Write commands

When using the SR command, 20ms will be added to the graph/table values.

Communication command

Number of connected

sensor amplifiers

Command processing time (T4)

FD-S Series

114 ms 215 ms 317 ms 418 ms

M0/MS/DRQ input

1 to 4

4 ms

Important

Communication command

Number of connected

sensor amplifiers

Command processing time (T4)

FD-S Series

114 ms 215 ms 317 ms 418 ms

1 57.5 ms 2 58.5 ms 3 60.5 ms 4 61.5 ms

Important

Communication Response Time

■ T5 (Response send time from DL-RS1A)

The time required to send a response varies depending on the communication speed, data bit length, and number of bytes. For information on the communication settings, refer to page 2. The response time can be calculated using the following formula:

T5 = (number of bytes) x (data bit length + 4) / (communication speed)

● Number of bytes for different commands

SR command : (number of bytes in the read data) + 12 M0 command : {(number of bytes in the read data) + 1} u number of connected sensor amplifiers + 4 MS command : {(number of bytes in the read data) + 3} u number of connected sensor amplifiers + 4 DRQ input : {(number of bytes in the read data) + 3} u number of connected sensor amplifiers + 4 SW command : 11 AW command : 8 * For information on the number of bytes in the write data and the number of bytes in the read data,

refer to "Parameters of Commands and Responses" (page 10).

Sample calculation

■ T6 (Sensor amplifier settings change time)

For information on the calculation function, refer to the manual supplied with the sensor amplifiers.

● When calculation function of sensor amplifiers is OFF

T6 = 0 ms for SW and AW commands; the sensor amplifiers complete modifying their settings during the T4 period. * This table also applies to the sensor amplifiers that do not have the calculation function.

● When calculation function of sensor amplifiers is ON

SW and AW commands both require the processing time shown below.

Number of bytes Data length Communication speed Response time

21 8 bit 9600 bps 26 ms

114 8 bit 9600 bps 143 ms

21 7 bit 38400 bps 6 ms

114 7 bit 38400 bps 33 ms

Number of connected sensor amplifiers Settings change time (T6)

17 ms 29 ms 313 ms 415 ms

Specifications

Performance Specifications

The following table shows the performance specifications for DL-RS1A.

* The number of connectable sensor amplifiers varies depending on the model to be connected.

• FD-S Series: Up to 4 units (including the main unit). Do not use in combination with other models.

Communication Specifications

The following table shows the communication specifications for DL-RS1A.

Item Specifications

Model DL-RS1A

Power supply voltage

20 to 30 VDC, including 10% ripple (P-P). Class2

(Supplied from the connected sensor amplifier) Current consumption 25 mA max. Number of connectable sensor amplifiers

Varies depending on the model*

Indicators

2 communication status indicators (green), alarm indicator (red), power indicator

(green)

Environmental

Ambient temperature

-10 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration 10 to 55 Hz, compound ampl itude 1.5 mm, 2 hours for each of XYZ axes Material Main unit housing: polycarbonate Weight Approx. 53 g

Accessories

Instruction manual, 2 end units, expansion connector cover, switch protection sticker

Item Specifications

Communication method Full duplex Synchronization method Asynchronous Transmission code

ASCII Communication speed (Baud rate)

2400, 4800, 9600, 19200, 38400 bit/s

(Factory default: 9600 bit/s) Data bit length 7 or 8 bits (Factory default: 8 bits) Parity check None, even, odd (Factory default: none) Stop bit length 1 bit

Data delimiter

Receive: automatically detect CR or CR + LF

Send: fixed to CR + LF

Specifications

Dimensions

■ When the unit is mounted on the DIN rail

■ When the optional fixture (OP-60412) is used

22.5

(48.2)

43.8

37.2

21.1 35.4 70

Unit：mm

2-(4.4x3.4)

37.2

43.8

51.3

31.4

28.5

35.5

22.5

2-φ3.4

Unit：mm

Troubleshooting

Problem Cause Action

The power indicator (POWER) does not light up.

Power is not supplied.

Make sure that the voltage of the power supplied to the sensor amplifier main unit is 20 to 30 VDC.

DL-RS1A is not properly inserted to the expansion connector of the sensor amplifier.

Reconnect the unit following the instructions in "Connecting the Unit to Sensor Amplifiers" (page 3).

The alarm indicator lights up before communication starts.

DL-RS1A is connected to a sensor amplifier that does not support DLRS1A.

Make sure that the unit is connected to an appropriate sensor amplifier model (refer to "Available sensor amplifiers" (page 4)).Reconnect the unit following the instructions in "Connecting the Unit to Sensor Amplifiers" (page 3).

The communication status indicator (RD) of DL-RS1A does not flash when you send a command from an external device.

The RD terminal of DL-RS1A is not connected to the SD terminal of the external device.

Check the connection wiring by referring to "Connecting the Unit to External Devices" (page 5).

No communication data is sent from the external device.

Make sure that communication commands are sent out from the external device.

The alarm indicator lights up while data is transmitted.

Communication settings are incorrect.

Make sure that DL-RS1A and the external device have the same settings specified for communication speed, data bit length, and parity check. For information on configuring DL-RS1A, refer to "Part Names and Functions" (page 2).

The communication status indicator (RD) of DL-RS1A flashes but the communication status indicator (SD) does not flash while data is transmitted. The communication status indicator (SD) of DL-RS1A flashes while data is transmitted, but the data cannot be retrieved by an external device.

Proper communication is not established.

Lower the communication speed. Use a shielded cable for the communication cable (refer to "Connecting the Unit to External Devices" (page 5)). Modify the connection wiring so that noise does not enter the communication cable.

A communication error response is returned from DLRS1A while data is transmitted.

For cause and action, refer to page 12.

ASCII Code Table

The following table lists the ASCII codes.

0 0 1 2 3 4 5 6 7 8 9 A B C D E F

123456789

EMH

0 ＠ P ｀ p

High-order 4 bits

！ 1AQaq  2BRbr ＃ 3CSc s ＄ 4DTd t ％ 5EUeu ＆ 6FVfv  7

Low-order 4 bits

GWg w

（ 8HXh x ） 9IYiy

： JZj z ＋； K ［ k ｛，＜ L\ l｜ー＝M ］ m ｝．＞ N ＾ n

／

→ ← ↑ ↓ ?O＿ o

Revision History

Date of printing Version Revision contents

January 2010 Released for each model.First edition

WARRANTY

KEYENCE products are strictly factory-inspected. However, in the event of a failure, contact your nearest KEYENCE ofﬁce with details of the failure.

1. WARRANTY PERIOD

The warranty period shall be for one year from the date that the product has been delivered to the location speciﬁed by the purchaser.

2. WARRANTY SCOPE

(1) If a failure attributable to KEYENCE occurs within the abovementioned warranty period,

we will repair the product, free of charge. However, the following cases shall be excluded from the warranty scope.

• Any failure resulting from improper conditions, improper environments, improper handling, or improper usage other than described in the instruction manual, the user’s manual, or the speciﬁcations speciﬁcally arranged between the purchaser and KEYENCE.

• Any failure resulting from factors other than a defect of our product, such as the purchaser’s equipment or the design of the purchaser’s software.

• Any failure resulting from modiﬁcations or repairs carried out by any person other than KEYENCE staff.

• Any failure that can certainly be prevented when the expendable part(s) is maintained or replaced correctly as described in the instruction manual, the user’s manual, etc.

• Any failure caused by a factor that cannot be foreseen at a scientiﬁc/technical level at the time when the product has been shipped from KEYENCE.

• Any disaster such as ﬁre, earthquake, and ﬂood, or any other external factor, such as abnormal voltage, for which we are not liable.

(2) The warranty scope is limited to the extent set forth in item (1), and KEYENCE assumes no

liability for any purchaser’s secondary damage (damage of equipment, loss of opportunities, loss of proﬁts, etc.) or any other damage resulting from a failure of our product.

3. PRODUCT APPLICABILITY

KEYENCE products are designed and manufactured as general-purpose products for general industries. Therefore, our products are not intended for the applications below and are not applicable to them. If, however, the purchaser consults with us in advance regarding the employment of our product, understands the speciﬁcations, ratings, and performance of the product on their own responsibility, and takes necessary safety measures, the product may be applied. In this case, the warranty scope shall be the same as above.

• Facilities where the product may greatly affect human life or property, such as nuclear power plants, aviation, railroads, ships, motor vehicles, or medical equipment

• Public utilities such as electricity, gas, or water services

• Usage outdoors, under similar conditions or in similar environments

KEYENCE DL-RS1AFD-S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Symbols

Safety Precautions

General Cautions

Handling Errors

Operating Precautions

Contents

Before Using the Unit

Checking the Package Contents

Part Names and Functions

Connecting the Unit to Sensor Amplifiers

Mounting the Unit

Connecting the Unit to Sensor Amplifiers

Connecting the Unit to External Devices

Communication Terminal Block

Communication Specifications

Communication Specifications

Sensor Amplifier ID Number Assignments

Commands and Responses

Overview of Commands and Responses

Reading

Writing

Parameters of Commands and Responses

Coriolis Digital Flow Sensor FD-S Series

Communication Response Time

Communication Response Time and Time Chart

Time Frames of Communication Response Time

Specifications

Performance Specifications

Communication Specifications

Dimensions

Troubleshooting

ASCII Code Table