Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual page 203

List of link special relay (SB)
The following table lists the link special relay areas (SB) when they are assigned from SB0000 to SB0FFF.
Do not turn on or off areas whose numbers are not in the following list. Doing so may cause malfunction of the
programmable controller system.
No. Name
SB0006 Clear communication error
count
SB0014 Cyclic data receive status
clear
SB0030 RECV execution request flag
CH1
SB0031 RECV execution request flag
CH2
SB0032 RECV execution request flag
CH3
SB0033 RECV execution request flag
CH4
SB0034 RECV execution request flag
CH5
SB0035 RECV execution request flag
CH6
SB0036 RECV execution request flag
CH7
SB0037 RECV execution request flag
CH8
SB0040 Network type of own station
SB0043 Module operation mode of
own station
SB0044 Station setting 1 of own
station
SB0045 Station setting 2 of own
station
SB0046 Station number setting status
of own station
Description
Clears the link special register areas related to communication
errors (SW0074 to SW0077, SW007C to SW007F) to 0.
Off: Clear not requested
On: Clear requested (valid while on)
Clears 'Cyclic data receive status' (SB0064).
While 'Cyclic data receive status clear' (SB0014) is on, the cyclic
data receive status does not turn on.
Off: Clear not requested
On: Clear requested (enabled while on)
Stores the data reception status of own station channel 1.
Off: No data received
On: Data received
Stores the data reception status of own station channel 2.
Off: No data received
On: Data received
Stores the data reception status of own station channel 3.
Off: No data received
On: Data received
Stores the data reception status of own station channel 4.
Off: No data received
On: Data received
Stores the data reception status of own station channel 5.
Off: No data received
On: Data received
Stores the data reception status of own station channel 6.
Off: No data received
On: Data received
Stores the data reception status of own station channel 7.
Off: No data received
On: Data received
Stores the data reception status of own station channel 8.
Off: No data received
On: Data received
Stores the network type of the own station.
ON: CC-Link IE TSN
Stores the module operation mode of the own station.
Off: Online mode
On: Other than online mode
Stores the station type of the own station.
Off: Slave station (other than the master station)
On: Master station
Stores the communication mode of the own station.
Off: Unicast mode
On: Multicast mode
Stores the station number setting status.
Off: Station number set
On: Station number not set (local station only)
If parameters are set using the engineering tool, this relay is always
off.
Availability
Master Local station
station
Unicast
mode
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Appendix 4 List of Link Special Relay (SB)
Multicast
mode
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