ACS550 User’s Manual
195
Embedded fieldbus
Relay output control
Using the fieldbus for relay output control requires:
• drive parameter values set as defined below
• fieldbus controller supplied, binary coded, relay command(s) in the appropriate
location. (The location is defined by the Protocol Reference, which is protocol
dependent.)
Note:
Relay status feedback occurs without configuration as defined below.
Analog output control
Using the fieldbus for analog output control (e.g. PID setpoint) requires:
• drive parameter values set as defined below
• fieldbus controller supplied analog value(s) in the appropriate location. (The
location is defined by the Protocol Reference, which is protocol dependent.)
Drive parameter
Value
Description
Modbus protocol reference
ABB
DRV
DCU
PROFILE
1401
RELAY
OUTPUT
1
35 (
COMM
) Relay Output 1 controlled
by fieldbus.
40134 bit 0 or 00033
1402
RELAY
OUTPUT
2
35 (
COMM
) Relay Output 2 controlled
by fieldbus.
40134 bit 1 or 00034
1403
RELAY
OUTPUT
3
35 (
COMM
) Relay Output 3 controlled
by fieldbus.
40134 bit 2 or 00035
1410
1
RELAY
OUTPUT
4
35 (
COMM
) Relay Output 4 controlled
by fieldbus.
40134 bit 3 or 00036
1411
1
RELAY
OUTPUT
5
35 (
COMM
) Relay Output 5 controlled
by fieldbus.
40134 bit 4 or 00037
1412
1
RELAY
OUTPUT
6
35 (
COMM
) Relay Output 6 controlled
by fieldbus.
40134 bit 5 or 00038
1
More than 3 relays requires the addition of a relay extension module.
Drive parameter
Description
Modbus
protocol
reference
ABB
DRV
DCU
PROFILE
0122
RO
1-3
STATUS
Relay 1…3 status.
40122
0123
RO
4-6
STATUS
Relay 4…6 status.
40123
Drive parameter
Value
Description
Modbus
protocol
reference
ABB
DRV
DCU
PROFILE
1501
AO
1
CONTENT
SEL
135 (
COMM
VALUE
1) Analog Output 1
controlled by writing to
parameter 0135.
–
0135
COMM
VALUE
1
–
40135
1507
AO
2
CONTENT
SEL
136 (
COMM
VALUE
2) Analog Output 2
controlled by writing to
parameter 0136.
–
0136
COMM
VALUE
2
–
40136
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