KEYENCE DL-RS1A/FD-MH - Manual (Page 11)

9
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
M S 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.
* * *
E R CR LF , M S , Error No.
2 ms min.
Input signal
ON
OFF
SG
RD
SD
SG
SG
DRQ
D R 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.
* * *
E R CR LF , D R , 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
S W CR LF ID No. Data No. , , Setting data* ,
S W CR LF ID No. Data No. , ,
E R CR LF , S W , Error No.
A W CR LF Data No. , Setting data* ,
A W CR LF Data No. ,
E R CR LF , A W , Error No.