Table 43: Protocol 0X81, Description Of Services; Table 44: Protocol 0X81, Pdu Structure; Table 45: Protocol 0X81, Structure Of Pdus, Legend - WAGO 750-658 Manual

94 Appendix

Table 43: Protocol 0x81, Description of Services

Service
Diagnostics
The table below shows the structure of PDUs for this protocol:

Table 44: Protocol 0x81, PDU Structure

Service PDU
Diagnostics

Table 45: Protocol 0x81, Structure of PDUs, Legend

Description Description
-
EC1
EC0
EQ
Manual
Version 1.2.1, valid from FW/HW-Version 01/01
Description
Transmission of a diagnosis as a message.
This byte is not used by this PDU
Event or error code, top byte (MSB)
Event or error code, bottom byte (LSB)
Event qualifier:
Bit 7 ... 6 Mode
Bit 5 ... 4 Type:
Bit 3 ... 0 (reserved)
WAGO-I/O-SYSTEM 750
750-658 CAN Gateway
Structure of PDU (Bytes 0 ... 5)
0 1 2
0xFF EC1 EC0
0: reserved
1: One-time message
2: Event disappears
3: Event appears
0: reserved
1: Notification
2: Warning
3: Error
3 4 5
0x00 EQ -