Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 207

■When the communication destination is an SLMP-compatible device (QnA-compatible 3E
frame)
Applicable devices differ depending on the device. For applicable devices, refer to the manual for the device used.
The device types that can be set are X, Y, M, L, B, SB, SM, D, W, SW, SD, R, and ZR. The accessible device range of the
communication destination is the range which can be specified with the subcommand (0000) of the SLMP (QnA-compatible
3E frame of the MC protocol).
The following SLMP commands are sent to the external device.
[When the communication pattern is "Read"]
Subheader Request
destination
network
No.
50H 00H 00H
[When the communication pattern is "Write"]
Subheader Request
destination
network
No.
50H 00H 00H
■When the communication destination is an MODBUS/TCP-compatible device
Applicable devices differ depending on the device. For applicable devices, refer to the manual for the device used.
The device types that can be set are Coil, Input, Input Register, and Holding Register.
Input and Input Register can be set only when the communication pattern is "Read".
Operation during the simple CPU communication
■Operation of the own station
Since the own station operates without depending on the operating status of the CPU module, the simple CPU
communication is performed even when the CPU module is in the STOP state because of stop error. When an initial
communication error occurs, communications of the corresponding setting numbers are stopped and ones of the setting
numbers, where no error occurs will operate.
If the communication destination sends a response, data is transferred to the system area for the simple CPU communication.
Data inconsistency will not occur in one setting since processing is executed for each setting.
■Operation of the communication destination
The operation differs depending on the communication destination.
Communication destination
MELSEC iQ-R (built-in Ethernet)
MELSEC iQ-R (Ethernet module)
MELSEC iQ-F (built-in Ethernet)
MELSEC-Q (built-in Ethernet)
MELSEC-Q (Ethernet module)
MELSEC-L (built-in Ethernet)
MELSEC-L (Ethernet module)
OMRON (CS/CJ series)
KEYENCE (KV series)
Panasonic (FP2SH series)
Panasonic (FP7 series)
YASKAWA MP3000 series
YASKAWA MP2000 series
Yokogawa FA-M3 series
SLMP-compatible device (QnA-compatible 3E
frame)
MODBUS/TCP-compatible device
Request Request Request Request
destination destination destination data length
station No. module I/O multidrop
No. station No.
FFH FFH 03H 00H 0CH 00H
Request Request Request Request
destination destination destination data length
station No. module I/O multidrop
No. station No.
FFH FFH 03H 00H
Data operation in one setting
Since the data in one setting is communicated at the same timing, data inconsistency will not occur.
Depends on the external device of the communication.
1.15 Simple CPU Communication Function (RJ71EN71, RnENCPU (Network Part))
Monitoring Command Subcommand Device
timer code
00H 00H 01H 04H 00H 00H
Monitoring Command Subcommand Device
timer code
00H 00H 01H 14H 00H 00H
Start device No. Number of
device points
Start device No. Number of Write data
device points
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