Bus Protocol Iec 60870-5-103; Function Description; Configuration Via Web - Siemens SICAM 7KG85X Manual

Serial Server
Table 2-24
Parameter
Good messages
CRC errors
Exception responses
Broadcast messages
Access rights violations
2.7.2

Bus Protocol IEC 60870-5-103

2.7.2.1

Function Description

The serial communication using the IEC 60870-5-103 protocol is executed via the RS485 interface.
2.7.2.2 Configuration via Web Pages
Configuration of the Serial Communication with IEC 60870-5-103 via RS485 Interface
To change the IEC 60870-5-103 settings in the Configuration tab, proceed as follows:
•
In the navigation window, click Communication serial and select IEC 60870-5-103 as the Bus protocol.
•
Configure the respective parameters according to the following table.
Settings for Communication Serial, IEC 60870-5-103
Parameter
Bus protocol
Device address
Baud rate
Measured value range
Transmit energy
Transmission of the 1st to 40th
harmonics HV and HI
Cyclic sending period
Communication supervision time
NOTE
i i
For the serial communication with IEC 60870-5-103, the parity is permanently set to even.
SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022
Description of the Parameters in the Serial Server
Description
Total number of messages received that were detected as valid Modbus messages
Total number of messages received in which CRC errors were detected
Counters of the transmitted exception response messages
Total number of the broadcast messages received with the server address 0
Total number of write accesses received if the parameter Access rights is set to
Read only in the Communication serial window.
Default Setting
Modbus RTU
1
9600 bit/s
120 %
equivalent to a measured value
range from -4096 to +4095 (-120
% to +120 %)
No
No
50 * 100 ms
600 * 100 ms
Basic Functions
2.7 Serial Communication
Setting Range
None
Modbus RTU
IEC 60870-5-103
1 to 254
9600 bit/s
19 200 bit/s
38 400 bit/s
120 %
240 %
equivalent to a measured value
range from -4096 to +4095 (-120
% to +120 % or -240 % to +240 %)
Yes (every minute)
No
No
Yes
30 * 100 ms to 600 * 100 ms
0 s = none
100 ms to 6 553 400 ms
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