Linking Power Supplies; Zup Series Command Set Description - TDK-Lambda ZERO-UP 200W User Manual

5.4 REMOTE PROGRAMMING VIA RS485
5.4.1 Introduction
For operation environments that require high noise immunity or long distance communication, it is
recommended to use the built-in RS485 interface. The RS485 interface is accessible through the
rear panel In/Out jacks in a similar way to the RS232. The communication is a four-wire type. Refer to
par. 5-6 for detailed explanation. Up to 31 ZUP units can be connected to the RS485 control as shown
in Fig. 5-6.
RS485
Fig. 5-6: Linking ZUP units to RS485 control.
5.4.2 RS485 cable ( PC to ZUP ) - NC402
5
1
Fig. 5-7: RS485 cable with
DB-9 female connector.

5.4.3 Linking power supplies

Power supplies are linked in the same way as described in par. 5.3.4.
5.5

ZUP SERIES COMMAND SET DESCRIPTION

The ZUP command set is divided into four categories as follows: 1. Initialization Control
The commands structure, syntax, and registers definition are described in this paragraph as listed
above.
RS485
ZUP (1)
ZUP (2)
1000m max.
DB-9 CONNECTOR
PIN NO.
HOUSING
9
8
1
5
4
RS485
8 PIN CONNECTOR
NAME PIN NO.
SHIELD HOUSING
-
TXD 6
+
TXD 8
5
SG
-
2
RXD
+ 4
RXD
2. ID Control
3. Output Control
4. Status Control
ZUP (31)
8
1
REMARKS
NAME
SHIELD
-
TWISTED
RXD
+
PAIR
RXD
SG
-
TXD TWISTED
+
TXD PAIR