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APPENDIX
Appendix 1 Special Relay List
SM8248 LC48 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8249 LC49 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8250 LC50 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8251 LC51 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8252 LC52 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8253 LC53 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8254 LC54 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8255 LC55 counting direction monitoring OFF: Down count operation
ON: Up count operation
R
SM8304 Zero OFF: Zero flag OFF
ON: Zero flag ON
R
SM8306 Carry OFF: Carry flag OFF
ON: Carry flag ON
R
SM8329 Instruction execution error OFF: Instruction execution normal
ON: Instruction execution error complete
R
SM8330 Timing clock output 1 DUTY instruction: Timing clock output 1 R
SM8331 Timing clock output 2 DUTY instruction: Timing clock output 2 R
SM8332 Timing clock output 3 DUTY instruction: Timing clock output 3 R
SM8333 Timing clock output 4 DUTY instruction: Timing clock output 4 R
SM8334 Timing clock output 5 DUTY instruction: Timing clock output 5 R
SM8340 Axis 1 pulse output monitor OFF: Stopped
ON: Pulse output
R
SM8348 Axis 1 positioning instruction executing OFF: Positioning instruction not executing
ON: Positioning instruction executing
R
SM8350 Axis 2 pulse output monitor OFF: Stopped
ON: Output
R
SM8358 Axis 2 positioning instruction executing OFF: Positioning instruction not executing
ON: Positioning instruction executing
R
SM8360 Axis 3 pulse output monitor OFF: Stopped
ON: Output
R
SM8368 Axis 3 positioning instruction executing OFF: Positioning instruction not executing
ON: Positioning instruction executing
R
SM8370 Axis 4 pulse output monitor OFF: Stopped
ON: Output
R
SM8378 Axis 4 positioning instruction executing OFF: Positioning instruction not executing
ON: Positioning instruction executing
R
SM8401 RS2 Send wait flag (ch1)/MODBUS request in process
(ch1)
ON during send wait or MODBUS communication. R
SM8402 MODBUS communication error (ch1) OFF: No error
ON: Error
R
SM8403 MODBUS communication error (latched) (ch1) OFF: No error
ON: Error (latch)
R
SM8404 RS2 Carrier detection flag (ch1)/MODBUS communication
mode (ch1)
ON when carrier detection or listen only mode R
SM8405 RS2 Data set ready (DSR) flag (ch1) OFF: DSR not detected
ON: DSR detected
R
SM8408 MODBUS retry (ch1) OFF: Not retry
ON: Retry
R
SM8409 RS2 Time-out check flag (ch1)/MODBUS Timeout (ch1) ON when time-out occurs. R
SM8421 RS2 Send wait flag (ch2)/MODBUS request in process
(ch2)
ON during send wait or MODBUS communication R
SM8422 MODBUS communication error (ch2) OFF: No error
ON: Error
R
No. Name Description R/W