ZEN-LOG-MAN-16V03 (0930)
Copyright © 2016 Define Instruments
21
6.4 - Relay output
The two Relay Outputs (A–B) can be wired as shown (right) and
configured in Define WorkBench from the "
Relays
" tab. Each Relay
Output has LED indication on top of the unit to indicate when the
relay is energized.
Both relays are normally open, and share a common. Each can be con-
figured for a ‘Closed’ or ‘Open’ triggered state (e.g. for fail safe opera-
tion). These settings are retained in software on power down, but the
relays are de-energized.
B
A
CO
M
Connection example for relay outputs
52
51
50
COM
A
B
Power Supply
Cooling
Note 1
30V AC/DC, 1A maximum con-
tact rating.
Note 2
For individual relay outputs (i.e.
not sharing a common) and/or a con-
tact rating of 250V AC, use ZEN-RIO,
which can provide 16 Relay Outputs.
6.5 - Digital inputs
The Zen Datalogger has four Digital Inputs (A–D), each with LED indication on top of the unit.
The digital inputs can be configured and scaled using Define WorkBench from the "
Digital
Inputs
" tab, as per the list below:
›
Status
(active/inactive - can be read by a SCADA
system as a general digital input)
›
Counter
(up to 10KHz, or 100Hz Debounced)
›
Frequency
(up to 10KHz)
›
Flow count
(up to 10KHz)
›
Flow rate
(up to 10KHz)
›
RPM
(up to 10KHz)
The Zen Datalogger can also be configured as an Intelli-
gent Multiplexer from the '
Retransmission
' tab (see Sec-
tion 8) - in this case the Digital Inputs are disabled.
Please see p22 for more wiring diagrams.
Digital Output
(5–30V DC)
D
C
B
A
CO
M
