ESTeem 195C, Руководство пользователя, Страница: 58 / 75

APPENDIX B
INTERFACE PORTS
Revised: 15 Feb 2017 APX B-3 ESTeem Models 195MHC
RS ‐ 485 and RS ‐ 422 Data Ports (Ports 1 and 2)
The ESTeem Model 195M/H/C have a single, two ‐ wire RS ‐ 485 interface in Port 1 and a single, four ‐ wire RS ‐ 422 interface in Port 2.
To ease access to these ports the AA066 (Figure 3) cable adapter is available. The RJ ‐ 45 interface can be inserted into either Port
1 (RS ‐ 485) or Port 2 (RS ‐ 422) and the corresponding signal lines (Figure 1) can be inserted in the screw terminals.
Note: Verify the screw terminal cover is attached to the cable before termination.
4/20mA Sensor Inputs (Port 1)
The ESTeem Model 195M/H/C have four independent 4/20mA inputs sensors that can be read through either ModbusTCP
protocol (See Chapter 6) or through the “sread” software command from a serial port. For detailed information on scaling or
modifications to sensor reading, please contact ESTeem customer support at 509 ‐ 735 ‐ 9092.
Figure 3: AA066 Cable Adapter