ABB 07CR41 Operating Manual page 84

3
The communications parameters are defined in accordance with the operating mode:
Operating mode
Active
Passive
®
MODBUS
Absolute identifier:
Symbolic identifier:
Meaning of the value of the constants:
The constant is a 5-digit decimal number
KW 00.06 =
Example:
MODBUS master Mode = 100
Slave no. = 217
Time delay = 1000
RTS signal inverted: 10000
Calculate entry in KW 00,06
KW 00,06 = 100 + 217 + 1000 + 10000 = 11317
KW 00,06 = 0 (Default)
KW 00,06 = 0
KW 00,06 = 1
KW 00,06 = 2
Modbus operation only with cable 07SK51/53
KW 00,06 = 100
KW 00,06 = 100
KW 00,06 = 100
Changing the system constants takes effect immediately.
Programming
Default parameters
9,600 baud
No parity
8 data bits
1 stop bit
No default parameters defined
9,600 baud
No parity
8 data bits
1 stop bit
KW 00,06
MODE_SST
RTS time delay
0 or 1000 or 2000
RTS signal inverted
0 or 10000
+ cable 07SK50/52
+ cable 07SK51/53
+ cable 07SK50/52
+ cable 07SK50/52
+ slave no.
(1..255)
+ slave no. + RTS time delay
(1..255) (0 or 1000 or 2000)
5 – 12
Modification of parameters
Parameters cannot be modified
Parameters are defined in the user
program by using the SINIT
function
Parameters are modified in the user
program using the SINIT function
Modes
0...355
1 1 3
Active mode
Passive mode (ASCII
mode)
Active mode
Passive mode (ASCII
mode)
Modbus master
Modbus slave
+ RTS signal inverted
(0 or 10000)
Advant Controller AC 31 / Issued: 01.99
1 7