Huber Pilot ONE Unichiller 00 eo Series, Руководство пользователя, Страница: 71 / 86

Interfaces and software update
Chapter 6 OPERATION MANUAL
V2.2.0en/09.08.21//17.12
Unichiller® eo Desktop
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trol unit is in stand-by mode. Messages can be reset as often as required, but faults can be reset
only 3 times.
▪ “Program 1 Start/Stop”: The temperature control program 1 is started if the enable signal chang-
es from “open” to “closed”. The temperature control program is stopped when changing from
“closed” to “open”.
▪
“Fill level alarm”: When switching from closed to open contact, an alarm is triggered if the fill
level is too low. For this purpose, a level sensor must be connected and placed in the
> sight
glass<
[23] or in the external application.
▪ “Fill level warning”: When switching from closed to open contact, a warning is generated if the fill
level is too low. For this purpose, a level sensor must be connected and placed in the > sight
glass< [23] or in the external application.
The interface is specified as a digital input. Do not apply voltage or current.
Pin Signal
1.3 E2
2 E1
6.3.5 Jack RS232/RS485 serial
A PC, a SPS or a Process Control System (PCS) can be connected to this jack for remote control of the
controller electronics. Alternatively, a connection to a RS485 bus is possible. Before plugging in the
cable, check the settings in the “Interfaces” category and adjust if necessary.
The interfaces used must meet the specifications of the generally accepted standards.
Pin Signal Description
Wiring RS232
2 RxD Receive Data
3 TxD Transmit Data
5 GND Signal GND
Wiring RS485
6 A with 120- Ω terminating resistor –
7 A –
8 B –
6.4 Firmware update
An instruction for running a firmware update can be found at www.huber-online.com.
Pin assignment (front
view)
Pin assignment
Pin assignment (front
view)
Pin assignment