rotork Modbus - Data Accessed with Function Code 02 - Read Discrete Inputs

Input and Output Signals
Publication PUB091-004-00_0918 45 of 64
5
R/W
DO-2 output coil status (extra relay S6) ①
0 - 1
6
R/W
DO-3 output coil status (extra relay S7) ①
0 - 1
7
R/W
DO-4 output coil status (extra relay S8) ①
0 - 1
8
R/W
Partial Stroke test
0 - 1
9
R/W
DO-5 output coil status (extra relay S9) ②
0 - 1
10
R/W
DO-6 output coil status (extra relay S10) ②
0 - 1
11
R/W
DO-7 output coil status (extra relay S11) ②
0 - 1
12
R/W
DO-8 output coil status (extra relay S12) ②
0 - 1
Note: Coil ‘on’ when the state is true, reports as a ‘1’.
Note ① DIO1 (IQ3) or RIRO1 (CVA) or Extra Relay board 1 must be fitted
Note ② DIO2 (IQ3) or RIRO2 (CVA) or Extra Relay board 2 must be fitted
7.6.2 Data Accessed with Function Code 02 - Read Discrete Inputs
Location (Bit)
R/W
Data
Range
0
RO
Actuator moving
0 - 1
1
RO
Closed position limit
0 - 1
2
RO
Open position limit
0 - 1
3
RO
Running closed
0 - 1
4
RO
Running open
0 - 1
5
RO
Remote selected
0 - 1
6
RO
Local Stop selected
0 - 1
7
RO
Local selected
0 - 1
8
RO
Thermostat tripped
0 - 1
9
RO
Monitor relay
0 - 1
10
RO
Valve obstructed
0 - 1
11
RO
Valve jammed
0 - 1
12
RO
Valve moving by hand
0 - 1
13
RO
Moving inhibited by MIT
0 - 1
14
RO
Position control enabled
0 - 1
15
RO
EEPROM Checksum failure
0 - 1
16
RO
Battery low
0 - 1
17
RO
Open interlock active
0 - 1
18
RO
Close interlock active
0 - 1
19
RO
DI-1
0 - 1
20
RO
DI-2
0 - 1
21
RO
DI-3
0 - 1
22
RO
DI-4
0 - 1
23
RO
Reserved
24
RO
Reserved
25
RO
Reserved
26
RO
Control contention
0 - 1
27
RO
Partial stroke test in progress
0 - 1
28
RO
Partial stroke test error
0 - 1
29
RO
General alarm. ①
0 - 1
Note: When the input is true the status reports as a ‘1’.
Note ① General alarm is any of the following: battery low/flat, valve alarm, actuator alarm, control
alarm, valve jammed/obstructed, or monitor relay.