Dz260_05a_oi_e.doc / Dez-16
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4.10.
Serial Interface
The serial RS232 interface in general may be used
for easy setup and commissioning of the units (with use of the OS32 operator software)
to change settings and parameters by PC or PLC during the operation
to read out internal states and actual measuring values by PC or PLC
The subsequent drawing shows how to link the monitor with a PC, using the standard
9-pin SUB-D-9 connector
2
3
5
RxD
RxD
TxD
TxD
GND
Screen
PC
DZ 260
DZ 261
DZ 266
DZ 267
DZ 269
15
(Sub-D-9)
16
14
4.11.
Relay Outputs K1 – K3 (DZ260 and DZ267 only)
The units provide three programmable relay outputs (all dry changeover), providing a switching
capability of 30 V / 2 A DC or 125 V / 0.6 A AC or 230 V / 0.3 A AC. Both, switching
characteristics and monitoring function may be programmed for each of the relays individually.
4.12.
Transistor Outputs K1 – K3 (DZ261 and DZ269 only)
The units provide three outputs with programmable switching characteristics.
K1 – K3 are fast-switching and short-circuit-proof transistor outputs with a switching capability of
5 ... 30 V / 350 mA each. The switching voltage of the outputs must be applied remotely to the
Com+ input (terminal 22). Both, switching characteristics and monitoring function may be
programmed for each of the outputs individually.
4.13.
Scalable Analog Output (DZ260, DZ261 and DZ266 only)
The units provide a voltage output with a +/-10 V range (max. load 2 mA) and a current output
with ranges 0 / 4 ... 20 mA (burden 0 – 270 Ohm), however only one of the two can be used at a
time. Beginning and end of the desired conversion range can be set by the operator menu (see
section
7.2.7
). The common potential of both outputs refers to GND.
The total resolution is 14 bits. A settling time of approx. 200 µs. is required. The overall response
time of the analog outputs primarily depends on the selected Sampling Time setting. After
volatile jumps of the input signal, the analog outputs may need up to two Sampling Time cycles
(plus 200 µsec.) to stabilize.
Important note: “voltage out” and “current out” must not be used together.
Please do never connect mA and V simultaneously!
