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Configuration IEC60870

DIP switch configuration

This is DIP switch functions diagram for Modbus RTU configuration. For enable IEC60870 protocol 1 switch should be in ON position.

AMB-8I-4O-DIP-2.png

Parity configuration

Parity configuration for both Modbus and IEC.

Parity Function
00
 NONE
01
 ODD
10
 EVEN
11
 NONE
Baudrate configuration

Baudrate configuration for both Modbus and IEC

Switch Baudrate
0000
 9600
0001
 1200
0010
 2400
0011
 4800
0100
 14400
0101
 19200
0110
 28800
0111 38400
1000
 57600
1001
 76800
1010
 115200
1011
 230400
1100
 256000
1101
 460800
1110
 576000
1111
 921600
Address configuration for IEC
Switch Value IEC Address
0000
 0 1
0001
 1 2
0010
 2 3
0011
 3 4
0100
 4 5
0101
 5 6
0110
 6 7
0111 7 10
1000
 8 20
1001
 9 30
1010
 10 40
1011
 11 50
1100
 12 60
1101
 13 70
1110
 14 80
1111
 15 90

EC60870-5-101 Implementation Guide

Protocol Overview

The device implements IEC60870-5-101 protocol with the following key functions:

Reading States (Interrogation)
  • C_IC_NA_1 (100)
  • Reading all inputs and outputs states
    • Inputs: 1000-1007
    • Outputs: 2000-2003
Controlling Outputs
  • Function: C_SC_NA_1 (45)
  • Purpose: Setting individual output states
  • IOA range: 2000-2003
  • Values: ON (1) / OFF (0)

Command Structure

General Interrogation Command
Type ID: 100 (C_IC_NA_1)
Qualifier: 20
Cause of Transmission: 6 (Activation)
Common Address: 1
Single Command (Output Control)
Type ID: 45 (C_SC_NA_1)
Cause of Transmission: 6 (Activation)
Common Address: 1
IOA: 2000-2003
Value: 0/1

SCADA system configuration

IEC60870-5-101 Protocol Configuration
  • Common Address (ASDU): 1
  • Frame format: FT1.2
  • Link Layer Address: according to device configuration
I/O Points Configuration:

For inputs (8 channels):

  • Type: Single Point Information (M_SP_NA_1)
  • IOA addresses: 1000-1007
  • Direction: Monitoring (read)

For outputs (4 channels):

  • Type: Single Command (C_SC_NA_1)
  • IOA addresses: 2000-2003
  • Direction: Control (write)

Verification:

  • Check if input states are correctly read (IOA 1000-1007)
  • Confirm control operation for each output (IOA 2000-2003)
  • Verify device responds to General Interrogation

 

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