Datakom DPR-400 - Iec60870-5-103; Modbus Settings; Input Parameters

DPR-400 User Manual Rev_01 Firmware V-1.0
- 51 -
The unit features dedicated oscillographic (Comtrade) memory for the last 20 trip events. The record files
contain the waveforms of the measuring channels as well as the instantaneous positions of the digital
outputs and relays. Each record file consists of 512 samples. The percentage of the data recorded before
the breaker trip can be adjusted, as well as the sampling rate.
Parameter Definition
Unit
Min
Max
Factory
Setting
Description
Sampling Rate
Hz
0
5000
1
Sampling frequency
Pre-trip percentage
%
10
90
50
Percentage of the record before trip
The unit features an RS485 communication port. This port can be used to communicate using MODBUS
or IEC60870-5-103 protocols.
Parameter Definition
Unit
Min
Max
Factory
Setting
Description
Protocol
-
0
1
0
0: MODBUS
1: IEC-103
Address
-
1
247
1
Modbus device address
Baud rate
-
2400
115200
9600
Communication speed
Measurement period
Sec
1
60
5
IEC60870-5-103 measurement period
Detection times and contact types for digital inputs are configured from this screen. After configuring a
digital input, use the button to navigate to the next digital input, and the button to return to main
menu.
Parameter Definition
Unit
Min
Max
Factory
Setting
Description
Type
-
0
1
0
0: Reserved
1: Alarm
Timer
Sec
0.0
10.0
0.1
The time period between receiving a
fault signal and raising an alarm.
Contact
-
0
1
0
0: Normally open
1: Normally closed
Function
-
0
4
0
0: User Function
1: CB External trip input
2: Parameter Group A Select
3: Parameter Group B Select
4: Parameter Group C Select
12.16. COMTRADE CONFIGURATION
12.17. IEC60870-5-103 / MODBUS SETTINGS
12.18. INPUT PARAMETERS