gefran 650 User Manual

80208G_MHW_650-1250-1350_01-2017_ENG
31
2.5. RS485 serial connection diagram
Up to 31 controllers (including different models) can be connected in parallel on the RS485 line. The line must end with a
resistor (120 Ω, 1/2 W).
Figure 13 - RS485 connection for 650 controller
Figure 14 - RS485 connection for 1250 and 1350 controllers
6
5
4
3
7
8
9
10
19
20
21
22
6
5
4
3
7
8
9
10
19
20
21
22
Host computer
RS485
Shield
120 Ω
1/2 W
120
Ω
+
-
B (+)
A (-)
Frame ground (FG)
+
-
650
No. 1
650
No. 31
4
3
2
1
45
46
47
48
28
27
26
25
4
3
2
1
45
46
47
48
28
27
26
25
Host computer
RS485
Shield
120 Ω
1/2 W
120
Ω
+
-
B (+)
Frame ground (FG)
A (-)
+
-
1250 - 1350
No. 1
1250 - 1350
No. 31
2. INSTALLATION
(*) f
or model
650-x-xxx-00031-x
650-x-xxx-00101-x
650-x-xxx-00201-x
(*)

gefran 650 Specifications

General

Brand	gefran
Model	650
Category	Temperature Controller
Language	English