Service manual

www.enc.net.cn/en Tel/Fax:[phone] Appendix 3 Serial port RS485 communication protocol
169
(4) Auxiliary device report current failure information to mainframe in the last
response frame.
(5) EDS1000 provides RS485 interface.
1.2.3 Transport mode
Asynchronous serial，semiduplex transport mode. Default format and transport
rate: 8-N-1，9600bps.For specific parameter setting please see description for
F2.14~F2.17 group function code.
(remark ： Below definition is only effective under series port RS485
communication mode, and definition for other parameters are the same as
original)
F2.14 Communication
configuration
LED first bit：baud rate selection
0：1200BPS
1：2400BPS
2：4800BPS
3：9600BPS
4：19200BPS
5：38400BPS
LED second bit：data format
0：1-8-1 format，no checkout
1：1-8-1 format，even checkout
2：1-8-1 format，odd checkout
1 03 ×
F2.15
Local address 0－127，127 is broadcast address 1 1 ×
F2.16
Communication timeout
detection time
0.0－1000.0s 0.1s 0.0s
×
F2.17
Local response delay
0－200ms 1ms 5ms
×
F2.53
RS485/232
communication
frame format selection
0: a ASCII frame of 14 byte or 18 byte
1: a hex frame of 8 byte or 10 byte,
original response not changed
2: a hex frame of 8 byte or 10 byte, 12
command has no response
3: a hex frame of 8 byte or 10 byte, 14
command has no response
4: a hex frame of 8 byte or 10 byte,
both 12 and 14
command have no res
p
onse
1 0
×