YASKAWA CP 341 Manual page 64

Communication protocols
Modbus > Modbus Master - Function codes
6.4.4.9 FC 11 - Fetch Communications Event Counter
6.4.4.10 FC 12 - Fetch Communication Event Log
64
n This function code serves to read the system words "Status word" and "Event
counter" from the slave.
n These words are more described in the "Gould Modbus Protocol".
DB SEND source
Address Name
+0.0 ADDR
+1.0 FUNC
DB RCV destination
Address Name
+0.0 data[1]
+2.0 data[2]
n This function code serves to read the system words "Status word", "Event counter"
and "Message counter" as well as 64byte "Event byte" of the slave.
n Here also information may be found in the description of the "Gould Modbus Pro-
tocol".
DB SEND source
Address Name
+0.0 ADDR
+1.0 FUNC
DB RCV destination
Address Name
+0.0 data[1]
+2.0 data[2]
+4.0 data[3]
+6.0 bytedata[1]
+7.0 bytedata[2]
... ...
+69.0 bytedata[64]
VIPA System 300S
Type Comment
BYTE Slave address
BYTE Function code
Type Comment
WORD Status word
WORD Event counter
Type Comment
BYTE Slave address
BYTE Function code
Type Comment
WORD Status word
WORD Event counter
WORD Message counter
BYTE Event byte 1
BYTE Event byte 2
... ...
BYTE Event byte 64
HB130 | CP | 341-1CH01 | en | 18-40