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OPERATION
Series 590
42/56
Edition 2013-05-13
298292EB
5.6.2
Operation
Description / Mode
Digit 1
Digit 2
Digit 3
Digit 4
PRESSURE CONTROL mode
P
0 . . . 100
= valve position (%, 0 = closed / 100 = open)
POSITION CONTROL mode
V
Valve closed
C
Valve open
O
Closed / open interlock (Valve
closed / open by digital input)
I
HOLD (position frozen) activated
H
Safety mode established. Refer to
chapter «Safety mode» for details.
D
Power failure
F
Table 5-2
RxD / TxD activity of RS232 communication is displayed by 2 blinking dots in digit 2.
The lower dot indicates RxD activity where the upper dot indicates TxD activity. The
indication is not real time.