1.8.1.10 TK506 - RS-485 Isolator for COM1
1.8.1.10.1 Composition
● Isolated side: 5-pin terminal
● AC500-eCo-side: D-sub 9, male
● Length 0.6 m
1 D-sub 9 terminal, male, RS-485
2 DIN rail mounting spring
3 Holes for mounting with 2x M4 screws
4 5-pin terminal, screw-type, RS-485
1.8.1.10.2 Intended Purpose
The RS485 isolator TK506 for COM1 of processor modules PM55x and PM56x allows longer
cable length for serial communication. The product can be used for the communication proto-
cols Modbus RTU or CS31 system bus.
The RS-485 isolator TK506 supports the processor modules PM55x and PM56x
with the following ordering numbers and version indices:
– 1TNE968900Rxxxx with version index ≥ A3 (see image below)
– 1SAP12xx00Rxxxx independent of the version index
Ä
Table 7 “Processor
Modules for AC500-eCo” on page 36
The isolator provides galvanic isolation of the RS-485 communication signals. It is supplied via
the 3.3 V output of the COM1 interface of the Processor Module. The isolator automatically
detects and follows serial data flow direction changes. It is adapted to communication speeds
up to 187.5 kBaud.
2019/04/17 3ADR010121, 13, en_US 1141
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