Beijer Electronics AN-BEI-E2-038 User Manual
Page 7
APPLICATION NOTE AN‐BEI‐E2‐038
Date: 15/02/12
AN‐BEI‐E2‐038 Modbus RTU Control and Register Mapping
7
Register
Parameter
Description
Format
Min
Max
Data format
Baudrate select
1
6
1 = Optibus fixed baudrate
2 = 9K6
3 = 19K2
4 = 38K4
5 = 57K6
6 = 115K2
Trip time setup
0
8
See user guide for more information
165
37
Access code definition
U16
0
9999
166
38
Parameter lock
U16
0
1
0: Unlock
1: Locked
167
39
Analog input offset
U16
‐5000
5000
1dp, e.g. 300=30.0%
168
40
Display scaling factor
U16
0
6000
3dp, e.g.100 = 0.100
169
41
User PI P gain
U16
1
300
1dp, e.g. 10 = 1.0
170
42
User PI I time constant
U16
0
300
1dp, e.g. 10 = 1.0s
171
43
User PI mode select
U16
0
1
See user guide for more information
172
44
User PI reference select
U16
0
1
See user guide for more information
173
45
User PI digital reference
U16
0
1000
1dp, e.g. 100 =10.0%
174
46
User PI feedback select
U16
0
3
See user guide for more information
175
47
2
nd
an input format
U16
0
5
0: 0...10V
1: 0…20mA
2: t 4...20mA
3: r 4...20mA
4: t 20...4mA
5: r 20...4mA
Parameter Registers – Additional Information
Register 164 – Communications Configuration
This Register entry contains multiple data entries, as follows
High Byte
Low Byte
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Trip Configuration
Baud Rate
Drive Address
Drive Address
: Integer 1 to 63
Baud Rate
: Settings as follows
:
1 = Internal bus fixed baudrate
2 = 9K6
3 = 19K2
4 = 38K4
5 = 57K6
6 = 115K2
Trip Time Setup : Settings as follows
:
0 = Comms Loss Trip Disabled
1 = 30ms Watchdog, Trip on Comms Loss
2 = 300ms Watchdog, Trip on Comms Loss
3 = 1000ms Watchdog, Trip on Comms Loss
4 = 3000ms Watchdog, Trip on Comms Loss
5 = 30ms Watchdog, Ramp To Stop on Comms Loss
6 = 300ms Watchdog, Ramp To Stop on Comms Loss
7 = 1000ms Watchdog, Ramp To Stop on Comms Loss
8 = 3000ms Watchdog, Ramp To Stop on Comms Loss