70
1MRS750915-MUM
Machine Terminal
Technical Reference Manual, General
REM 54_
The following table gives an overview of the fault origin.
5.1.13.
Serial communication
The machine terminal has three serial communication ports, one on the front panel
and two on the rear panel.
5.1.13.1.
Serial communication port assignment
The bus communication protocol for the rear interface RS-232 (connector X3.2) is
selected via the
Protocol 2
setting parameter and the bus communication
protocol for the rear interface RS-485 (connector X3.3) is selected via the
Protocol 3
setting parameter. These parameters can be modified by using the
local menu (
Communication/General)
or by using the Relay Setting Tool.
The following table shows supported parallel communication protocols on the front
and the rear connectors of the REM 54_ machine terminals.
5.1.13.2.
SPA/Modbus communication on the rear connector X3.2
The 9-pin D-type subminiature male connector (RS-232 connection) on the rear
panel connects the machine terminal to the distribution automation system via the
SPA bus or the Modbus. The fibre-optic interface module type RER 123 is used for
connecting the machine terminal to the fibre-optic communication bus for SPA
protocol. A third-party fully isolated RS-232/RS-485 converter
1
is used for
connecting the machine terminal to the RS-485 multi-drop communication bus for
the Modbus.
Do not reset the machine terminal before reading the IRF code. The
code should be supplied when overhaul is ordered.
Codes
Explanation
0 ->
Faults related to a module of the machine terminal, e.g. the MIMIC
card, BIO card or RTD/analog module
3000 ->
Faults related to the parameter database
6000 ->
Faults related to the analog measurement inputs
7000 ->
Software faults
15000 ->
Faults related to testing
Connectors/Communication parameters
X3.2/Protocol 2
X3.3/Protocol 3
Front connector
SPA
LON
SPA
-
SPA
SPA
Modbus
-
SPA
Modbus
SPA
-
1. The port is not isolated. The functionality of the port is tested with Phoenix
RS-232/RS-485 converter (PSM-ME-RS232/RS485-P). In the delivery of
REM 543 with Modbus communication, a dedicated cable is included.
Summary of Contents for REM 54 Series
Page 1: ...Machine Terminal REM 54_ Technical Reference Manual General ...
Page 2: ......
Page 6: ...6 ...
Page 8: ...8 ...
Page 12: ...12 ...
Page 22: ...22 ...
Page 26: ...26 ...
Page 92: ...92 ...
Page 94: ...94 ...
Page 102: ...102 ...
Page 104: ...104 ...
Page 108: ......
Page 109: ......