Communication Settings - ABB ACS 400 User Manual

Communication settings

Communication settings define the communication speed, parity checking, number of stop bits and
fault functions. These settings for Channel 1 are defined using parameters in groups 50
COMMUNICATION and 52 STANDARD MODBUS.
Default communication settings for Channel 1 are listed in Table 12. To be able to communicate
with the master device, the ACS 400 must use the same communication speed and parity settings
as the master.
Further information on all parameters and their alternative settings is given in under "ACS 400
Complete Parameter List" on page 51.
Table 13 Communication parameters.
Code Name
Group 52
STANDARD MODBUS
5201
STATION NUMBER
5202
COMM SPEED
5203
PARITY
Group 50
COMMUNICATION
5003
COMM FAULT TIME
5004
COMM FAULT FUNC
5005
PROTOCOL SEL
ACS 400 User's Manual
Range Default
1 - 247 1
300,...,19200 bps 9600 bits/s
, ,
NONE EVEN ODD NONE
0.1 - 60.0 s 1.0 s
, ,
NOT SEL FAULT NOT SEL
7,
CONST SP
LAST SPEED
, ,
NOT SEL DDCS STD NOT SEL
,
MODBUS STD
+
MDB DDCS
User Function/Information
Slave number for ACS
400 in Modbus network.
Communication speed.
Parity and stop bit setting.
Time limit for
communication loss
detection.
Operation in case
communication with the
master device is lost.
Communication protocols
selection.
Normally must be set to
.
STD MODBUS
99