GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual
(Version 1.60, May/2017)
PAGE: 38
Read DI(RDI)- Read Digital Input
Read DO(RDO)- Read Digital Output
Read AI(RAI)-Read Analog Input
Read AO(RAO)-Read Analog Output
f.
Change Word Order
：
When this setting is “Enable”, the GW-7552-B /
GW-7552-M will change the data between the high word and low word for
reading easily.
g.
(M) means the parameter is effective, when Modbus type of GW-7552-B /
GW-7552-M is master.
4.5 Diagnostic messages
The GW-7552-B / GW-7552-M can show maximally 10 diagnostic messages at
the same time. If the number of the diagnostic messages is bigger than 10, the
GW-7552-B / GW-7552-M will not process other diagnostic message. The
diagnostic messages have four types. They are “Module Error”, “System Setting
Module Error”, “EEPROM Error” and “Input Data Error”. The diagnostic
messages are shown in
table 12
.
Table 12 diagnostic messages
Messages
Description
Note
Module 1~32 Error *
ILLEGAL FUNCTION!(0x01)
Please refer
Modbus
Exception
Code
definition for
detail.
ILLEGAL DATA ADDRESS!(0x02)
ILLEGAL DATA VALUE!(0x03)
SLAVE DEVICE FAILURE!(0x04)
ACKNOWLEDGE!(0x05)
SLAVE DEVICE BUSY!(0x06)
NEGATIVE ACKNOWLEDGE!(0x07)
MEMORY PARITY ERROR!(0x08)
MODBUS NOT DEFINED ERROR!(0x09)
GATEWAY PATH UNAVAILABLE!(0x0A)
GATEWAY TARGET DEVICE FAILED TO
RESPOND!(0x0B)
CRC (LRC) Error!(0xFD)
Response Message Timeout!(0xFE)
System setting module
Not find System setting module.(0x3D)