Samson 3730-3 - Page 108

108 EB 8389 EN
Binary input
issued in the BINARY_INPUT2 parameter
of the AO Transducer Block.
− Internal solenoid valve
In this setting, the current switching state
of the optional internal solenoid valve is
analyzed and issued over OUT_D. '0' in-
dicates a de-energized solenoid valve (U
< 15VDC) and '1' an energized sole-
noid valve (U > 19VDC).
− Discrete nal valve position
In this setting, the current discrete valve
position is issued over OUT_D. The val-
ues are assigned as follows:
0 Device not initialized
1 Valve closed
2 Valve open
3 Valve in intermediate position
− Condensed state
In this setting, the current condensed
state according to NAMUR Recommen-
dation NE107 is issued over OUT_D.
The status messages are assigned to the
discrete value as follows:
0 No message
1 Maintenance required
2 Maintenance demanded
3 Maintenance alarm
7 Function check
− Condensed state and VST
The positioner starts a single partial
stroke test. The test is performed using
the settings in Code49 - d2 to Code49
- d9 (see section5.4).
Additionally, the condensed state ac-
cording to NAMUR Recommendation
NE107 is issued over OUT_D. The status
messages are assigned to the discrete
value as follows:
0 No message
1 Maintenance required
2 Maintenance demanded
3 Maintenance alarm
7 Function check
The logic state of the binary input is dened
in the 'Conguration binary input 2' param-
eter (CONFIG_BINARY_INPUT_2).
Settings > Binary input 2 (DI2, TRD)
− Selection binary input 2: [Floating contact], In-
ternal solenoid valve, Discrete nal valve posi-
tion, Condensed state, Condensed state and
VST
− Conguration binary input 2: [Not evaluated],
Actively open, Actively closed, Actively open–
leakage detection, Actively closed – leakage
detection, Start PST
− Assignment TRD/DI: [Connected with DI2
TRD(2)], Not connected with TRD (0)