GFK-1504K
Chapter 2 Installation Instructions
2-7
2
Connecting the Expansion Cable: RS-485 Differential
For a multiple-rack expansion system, connect the cable from the expansion port on the
Expansion Transmitter to the Expansion Receivers as shown below. If all the Expansion
Receivers are the Isolated type (IC200ERM001), the maximum overall cable length is 750
meters. If the expansion bus includes any non-isolated Expansion Receivers
(IC200ERM002), the maximum overall cable length is 15 meters.
PS
CPU/NIU
PS
ERM
PS
ERM
ETM
VersaMax ExpansionRack 1
Terminator
Plug
15M with any
IC200ERM002 ERMs
750M with all
IC200ERM001 ERMs
VersaMax PLC or I/O Station Main Rack (0)
VersaMax ExpansionRack 7
IC200CBL601,
602, 615
Install the Terminator Plug (supplied with the Expansion Transmitter module) into the
lower port on the last Expansion Receiver. Spare Terminator Plugs can be purchased
separately as part number IC200ACC201 (Qty 2).
RS-485 Differential Inter-Rack Connection (IC200CBL601, 602, 615)
Expansion
Transmitter or
Expansion
Receiver
Module
Transmitting
Port
PIN
2
3
5
6
8
9
12
13
16
17
20
21
24
25
7
23
1
FRAME+
FRAME-
RIRQ/+
RIRQ/-
RUN+
RUN-
RERR+
RERR-
IODT+
IODT-
RSEL+
RSEL-
IOCLK+
IOCLK-
0V
0V
SHIELD
PIN
2
3
5
6
8
9
12
13
16
17
20
21
24
25
7
23
1
FRAME+
FRAME-
RIRQ/+
RIRQ/-
RUN+
RUN-
RERR+
RERR-
IODT+
IODT-
RSEL+
RSEL-
IOCLK+
IOCLK-
0V
0V
SHIELD
26-PIN
FEMALE
26-PIN
MALE
26-PIN
MALE
26-PIN
FEMALE
VARIABLE (SEE
TEXT)
Expansion
Receiver
Module
Receiving
Port
Building a Custom Expansion Cable
Custom expansion cables can be built using Connector Kit IC200ACC202, Crimper AMP
90800-1, and Belden 8138, Manhattan/CDT M2483, Alpha 3498C, or equivalent AWG
#28 (0.089mm
2
) cable.
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Содержание VersaMax
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