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5. Strip an appropriate length from the other end of the cable and connect the end to the
SUN2000 terminal block.
Terminal definition:
(1) RS485A IN (2) RS485A OUT
(3) RS485B IN (4) RS485B OUT
•
The RS485 IN and RS485 OUT ports on the SUN2000 can both connect to the SmartLogger.
This document uses the RS485 OUT port as an example to describe the connection between the
SUN2000 and the SmartLogger.
•
Ensure that the SmartLogger COM+ (RS485A) port connects to the 2 (RS485A OUT) terminal on
the SUN2000 terminal block, and that the SmartLogger COM– (RS485B) port connects to the 4
(RS485B OUT) terminal on the SUN2000 terminal block.
5.3
Connecting Multiple Devices
1. Each SmartLogger can connect to a maximum of 200 devices. You are advised to connect fewer
than 30 devices to each RS485 route.
2. Each SmartLogger connects to a maximum of 150 SUN2000s.
3. Huawei equipment and third-party equipment need to be connected, you are advised to connect
them to different COM ports. If only Huawei equipment or third-party equipment needs to be
connected, connect it to any idle COM port.
4. Verify that devices using the same protocol are connected to the same COM port. Devices using
different protocols (for example, the cubicle which uses the IEC103 protocol and the power meter
which uses the DL/T645 protocol) need to be connected to separate COM ports.
5. If the model of the PID module connecting to the SmartLogger is SmartPID2000, one
SmartLogger can connect to two PID modules.
Recommended Connection Mode
PLC
(MBUS)
CCO
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