Technical Data
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5.4 Interfaces
5.4.1 RS 485 Interfaces
Interface type Two-wire bus interface with passive coupling
(RS 485)
Central module 2 interfaces
Quantity H41q max. 4 interfaces on 2 coprocessor modules
Interface extensions
Quantity H51q max. 12 interfaces on 6 coprocessor modules
Interface extensions
Baud rate 300 bps up to 57600 bps (except 38400 bps)
Connection to by RS 485 / RS 232C converter, type H 7505
programming device or cable BV 7043
5.4.2 Ethernet Interfaces
Interface type Ethernet according to IEEE 802.3 with 100BaseT
connection via RJ 45
Quantity H41q max. 2 interfaces on 2 communication modules
Interface extensions (with redundant CUs up to 4 interfaces)
Quantity H51q max. 5 interfaces on 5 communication modules
Interface extensions (with redundant CUs up to 10 interfaces)
Baud rate max. 100 Mbit/s
5.4.3 Profibus-DP interfaces
Interface type Profibus-DP Slave coupling with RS 485
Quantity H41q max. 2 interfaces on 2 communication modules
Interface extensions (with redundant CUs up to 4 interfaces)
Quantity H51q max. 5 interfaces on 5 communication modules
Interface extensions (with redundant CUs up to 10 interfaces)
Baud rate up to 12 MBit/s
5.5 Definition of Signals
The signal definitions of the H41q and H51q systems are according to IEC/EN 61131-2:
Input signals
L-signal (0-signal) -3...+5 V or open input
H-signal (1-signal) +13...+33 V
typ. switching point: approx. 9 V
Output signals
L-signal (0-signal) 0...+2 V
H-signal (1-signal) +16...+30 V
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