WAGO 750 Series Manual page 125

Register address 0x1027 (MODBUS Address 404136)
Designation Perform an internal bus cycle
Access
Description
Register address 0x1028 (MODBUS Address 404137)
Designation
Access
Description
Register address 0x1029 (MODBUS Address 404138, with a word count of upto 9)
Designation
Access
Description
Register address 0x1030 (MODBUS Address 404145, with a word count of 1)
Designation
Access
Default
Description
Register address 0x1031 (MODBUS Address 404146, with a word count of 3)
Designation
Access
Description
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Read
Activate/deactivate configuration via BootP
read / write
0: No BootP is used
1: BootP is active
MODBUS TCP statistics
read / write
1 word SlaveDeviceFailure
1 word BadProtocol;
1 word BadLength;
2 words BadFunction;M
2 words Bad Address;
2 words BadData;
2 words TooManyRegisters; -> Number of the registers which can be
2 words TooManyBits
2 words ModTcpMessageCounter-> Number of received MODBUS/TCP
With Writing 0xAA55 or 0x55AA in the register will reset this data area.
Configuration MODBUS/TCP Timeout
read / write
0x0000
This is the maximum number of milliseconds the coupler will allow a
Modbus TCP connection to stay open without receiving a Modbus request.
Upon timeout, idle connection will be closed. Outputs remain in last state.
Default value is 0 (timeout disabled).
Read the MAC-ID of the coupler
read
This register gives the MAC-ID, with a length of 3 words
Fieldbus Communication
MODBUS Functions
-> internal bus error, F-bus error by
activated watchdog
-> error in the MODBUS TCP header
-> Wrong telegram length
-> Invalid function code
-> Invalid register address
-> Invalid value
worked on is too large, Read/Write
125/100
-> Number of the coils which can
be worked on is too large, Read/Write
2000/800
requests
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