Beijer Electronics SCOM Protocol EN - Manual (Page 121)

Command Reference
Elektronik-Systeme Lauer, MAEN976 121
6.65 LAU_STATUS_SCOMSERMODE (0x0303)
Current SCOM Serial Interface Mode
Returns the current serial interface mode. If the DIL (DIP) switch settings are used,
this is the serial interface mode configured via DIL switches. If the DIL switch set-
tings are overridden, this is the configured serial interface mode. The serial interface
mode indicates the physical type of the serial interface used for the SCOM commu-
nication. Available modes are RS232 and RS485. RS232 allows a point-to-point
communication, i.e. computer and monitor or monitor and monitor. With RS485,
many monitors can be attached to the same physical line and can be controlled by
one or more computers, allowing a kind of networking. Limitation is given only by
the physical characteristics of the RS485 bus.
Supported since Firmware Version
MT223 NAV-230G: 1.0
MT226 NAV-230G: 1.0-DSCALE2
Command Stream
Response Message (Acknowledge)
Response Message (Negative Acknowledge)
Under normal operation conditions, a device never sends a negative acknowledge in
response to this command.
Maximum Lr for this Command
9
0 1 2 3 4 5 6 7...8 9
0x07 ADR 0x4C 0x41 0x55 0x02 ICHKH 0x03 0x03 ICHKD
0 1 2 3 4 5 6 7 8
0x06 ADR 0x4C 0x41 0x55 0x01 ICHKH Ret ICHKD
Ret
Value: 0x00: The serial interface is configured as RS232
0x01: The serial interface is configured as RS485
Type: Byte
Length: 1
Description: Current serial interface mode used for SCOM communication