Flintec MCS-08 - Manual (Page 37)

MCS-08 Technical Manual, Rev. 1.04 December 2012 Page 37 of 52
9. MCS-08MB
–
M
ODBUS
RTU G
ATEWAY
The MCS-08MB gateway module integrates up to 8 pcs. MCS-08AD A/D Converter modules and up to 8 pcs.
MCS-08IO Digital I/O modules to an external Modbus RTU bus. The MCS-08MB gateway module
communicates with other MCS-08 modules via the internal N-bus and responses to the PLC via Modbus RTU.
9.1. Front View
There are 3 status LEDs on the front panel which indicate the operational module status (Refer to table 9.1).
The setup switch on front panel of the module is used for N-bus addressing without PC (Refer to chapter 5.6)
and for diagnostics (Refer to chapter 15).
When the error LED is ON, the other two LED indicate the error type (Refer to chapter 14 for details). Power
supply and serial interface terminals are located at the front of the DIN rail mount module (See figure 9.1).
Status LEDs
RS-485 connector
RS-232C connector
Setup Switch
Power Supply Terminal
Figure 9.1
– Front view
The meanings of these LEDs in operation are described below.
Status LEDs
Symbol Name Description
Pwr Power
Module is energized
Module is de-energized. Check power cable
Lnk Link
Communication takes place
No communication
Err Error
Error. Refer to error table in chapter 14
No error
Off On Off for 0.3 seconds
Table 9.1
– Status LEDs