Lovibond Tintometer PTV Series, Руководство пользователя, Страница: 33 / 40

33
PCM_V2.1 12.2018
Network Status LED
Module Status LED
9 Pin Female Connector
The Modbus interface is galvanically isolated, and provides both RS-232 and RS-485
LED State Indication
Off Not online / No power
Yellow This LED will flash during correct reception and trans-
mission (20 ms on, 40 ms off)
Red A FATAL ERROR has occured
LED State Indication
Off Not initialized
Green Initialized
Red Internal error or major unrecoverable fault
Red, Single Flash Communication fault or configuration error
Case 1: Invalid settings in Network Configuration Object
Case 2: Settings in Network Configuration Object has been
changed during runtime (i .e . the settings do not match the
currently used configuration .)
Red, Double Flash Application diagnostics available
Pin Direction Signal Comment
Housing - PE Protective Earth
1 - GND Bus polarization, ground (isolated)
2 Output 5V Bus polaripower 5V DC (Isolated)
Any current drawn from this pin will affect
the total power consumption .
3 Input PMC Connect to pin #2 for RS-232 operation .
Leave unconnected for RS-485 operation
4 - - -
5 Bidirectional B-Line RS-485 B-Line (+)
6 - - -
7 Input Rx RS-232 Data Receive
8 Output Tx RS-232 Data Transmit
9 Bidirectional A-Line RS-485 A-Line (-)
GB Digital Interface