Installation
28 — English
Vacuum spray degassing — 03.11.2014
6.5.2
RS-485 interface
Use this interface to retrieve all controller data and to enable the communication with control centres or other devices.
The following data can be requested:
• Pressure.
•
Operating modes of the "PU" vacuum pump.
•
Operating modes of the "CD" 3-ways motor ball valve for degassing.
•
Cumulated quantity of the "FQIRA+" water meter.
•
All messages, see chapter 8.2.4 "Messages" on page 41 .
•
All entries in the fault memory.
Notice!
If required, please contact the Reflex Customer Service for the protocol of the RS-485 interface, details of the connections
and information about the accessories offered.
6.5.2.1
Connecting the RS-485 interface
Connect the interface as follows:
1. For connecting the interface use only a cable with these properties:
– LJYCY (TP), 4 × 2 × 0.8, maximum overall bus length 1000 m.
2. Use a shielded cable to connect the interface to terminals 29, 30, 31 of the main board in the control cabinet.
– For connecting the interface, see chapter 6.5 "Electrical connection" on page 25 .
3. When using the device with a control centre not supporting an RS-485 interface (RS-232, for example), you must use a
corresponding adapter.
