Endress+Hauser Proline 300, Краткое руководство по эксплуатации

Страница: 21 / 36

Proline 300 Modbus RS485 Electrical connection
Hauser 21
5.3.2 Connecting the remote display and operating module DKX001
The remote display and operating module DKX001 is available as an optional extra.
• The measuring device is always supplied with a dummy cover when the remote display
and operating module DKX001 is ordered directly with the measuring device. Display
or operation at the transmitter is not possible in this case.
• If ordered subsequently, the remote display and operating module DKX001 may not be
connected at the same time as the existing measuring device display module. Only one
display or operation unit may be connected to the transmitter at any one time.
1
3
81
V
cc
82
Gnd
83
A
84
B
81
V
cc
82
Gnd
83
A
84
B
2
4
5
A0027518
1 Remote display and operating module DKX001
2 Protective earth (PE)
3 Connecting cable
4 Measuring device
5 Protective earth (PE)
5.4 Ensuring potential equalization
5.4.1 Requirements
No special measures for potential equalization are required.
5.5 Hardware settings
5.5.1 Setting the device address
The device address must always be configured for a Modbus slave. The valid device addresses
are in the range from 1 to 247. Each address may only be assigned once in a Modbus RS485
network. If an address is not configured correctly, the measuring device is not recognized by
the Modbus master. All measuring devices are delivered from the factory with the device
address 247 and with the "software addressing" address mode.