Keyence DL-RS1A/IB Manual do Utilizador descarregar pdf (Página 12)

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

Error No.

AW CR LFData No.

Setting data*

AW CR LFData No.

ER CR LF

Error No.

Parameters of Commands and Responses

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

 Communication commands

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

• For information on the data, refer to the instruction manual or user's manual supplied with

the sensor amplifiers.

• If commands are sent during the period of approx. 3 seconds after the power is turned on,

the communication error (error number: 22) will occur.

 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 with the ID number 00 = 00, sensor amplifier with the ID number 03 = 03

Communication

command

Attribute Description

Read

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

specified ID number.

Reads the judgment value (P.V.) that DL-RS1A periodically retrieves from all

sensor amplifiers.

Reads the judgment output that DL-RS1A periodically retrieves from all sensor

amplifiers, the ON/OFF state of the check output and the judgment value (P.V.)

collectively.

DRQ input

Reads the ON/OFF state of the judgment output and check output, and the

judgment value (P.V.) that DL-RS1A periodically retrieves from all sensor

amplifiers when a DRQ input is received.

Write

Writes setting data for the specified data number onto the sensor amplifier with

the specified ID number.

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

Point

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 23 24

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