Mitsubishi Electric MELSEC iQ-R16MTCPU - Page 203

5 FUNCTIONS USED WITH SSCNET COMMUNICATION
5.6 Connection of SSCNETIII/H Head Module
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■Status device
Set the device for storage of the status of the SSCNET/H head module with a bit device or word device.
• Refer to device list for the range of bit devices and word devices that can be set. (Page 75 Device List)
• The device uses 16 points (1 point if a word device) from the specified device number. The details stored in the status
device are shown below.
■Monitor device
Set the devices for monitoring the status of SSCNET/H head module with a word device.
• Refer to device list for the range of word devices that can be set. (Page 75 Device List)
• The device uses 10 points per word from the specified device number. The details stored in the status device are shown
below.
Off set Signal name Refresh cycle Details
+0 Unusable 
+1
+2
+3
+4
+5
+6
+7 During stop error Operation cycle Can be used to judge whether there is an error or not by the signal turning ON when
a stop error is detected in the SSCNET/H head module.
The applicable error code is stored in the error code signal of the monitor device set
in Monitor device. (Page 201 Monitor device) If error is reset by turning ON the
error reset command, or turning ON the SSCNET/H head module power supply
again, the signal turns OFF.
+8 Unusable 
+9
+10
+11
+12
+13
+14
+15 During continue error Operation cycle Can be used to judge whether there is an error or not by the signal turning ON when
a continue error is detected in the SSCNET/H head module.
The applicable error code is stored in the error code signal of the monitor device set
in Monitor device. (Page 201 Monitor device) If error is reset by turning ON the
error reset command, or turning ON the SSCNET/H head module power supply
again, the signal turns OFF.
Off set Signal name Refresh cycle Details
+0 Module operating status Operation cycle Stores the operating status of SSCNET/H head module.
0: No communication
1: STOP status
2: RUN status
3: ERROR status
+1 Error code Stores the error code when an error is detected in the SSCNET/H head module.
(Continue error and stop error)
If error is reset by turning ON the error reset command, or the SSCNET/H head
module power supply is turned ON again, this device is also cleared.
+2 Accumulative count for
communication retry
At a communication retry Holds the accumulative count for communication retry with the SSCNET/H head
module.
+3 Maximum continuous times
for communication retry
Counts each time a communication retry with the SSCNET/H head module occurs.
When communication is successful, the count is "0".
+4 Unusable 
+5
+6
+7
+8
+9