ABB EasyLine EL3000, Руководство пользователя

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96 EL3000 CONTINUOUS GAS ANALYZERS | CI/EL3000-EN REV. C
… 5 Electrical connections
Modbus®-Module
Terminal layout
Figure 44: Modbus module
RS232 Interface
Version: 9-pin sub-D male connector
Pin Signal
2 RxD
3 TxD
5 GND
RS485 interface
Version: 9-pin sub-D female connector
Pin Signal
2 RTxD-
3 RTxD+
5 GND
Note
You will find detailed information regarding the “Modbus” in the
description of the interface “COM/EL3000/MODBUS”.
Note
The Modbus® protocol is an unsecured protocol, as such the
intended application should be assessed to ensure that these
protocols are suitable before implementation.
PROFIBUS®-Module
Terminal layout
Image 45: PROFIBUS® module
RS485 interface
Version: 9-pin sub-D female connector
Pin Signal Description
1 — not assigned
2 M24 24 V output voltage, ground
3 RxD/TxD-P Receive/transmit data plus, B-line
4 — not assigned
5 DGND Data transmission potential
(Reference potential for VP)
6 VP Supply voltage plus (5 V)
7 P24 24 V output voltage plus, max. 0.2 A
8 RxD/TxD-N Receive/transmit data N, A-line
9 — not assigned
MBP Interface (not intrinsically safe)
Model: 4-pole plug-in terminal strip with mating connector
(included in the scope of delivery).
Pin Signal
1 +
2 Shield
3 −
4 not used
Note
You will find detailed information regarding PROFIBUS® in the
‘30/24-415’ technical information.
Note
The PROFIBUS® protocol is an unsecured protocol (in the context
of IT or cyber security), therefore the intended application
should be assessed before implementation, in order to ensure
that the protocol is suitable.