
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 115
Terminal Passthrough Mode: direct communication between two ZENO
®
-3200 COM ports.
SDI-12 Passthrough Mode: direct communication between two ZENO
®
-3200 COM ports where the
remote device is a SDI-12 sensor, which requires special timing and message formatting for
communications.
When you enter Passthrough Mode, ZENOSOFT
®
will continue to perform
normal data collection EXCEPT from any serial sensor(s) connected to the
COM port that you have specified for your Passthrough Mode Session.
6.9.1. Terminal Passthrough Mode
Terminal Passthrough Mode is accessed via the Communications Menu. There are two options for
entering Terminal Passthrough Mode:
Passthrough Mode Option Command To Enter in Communications Menu
Enter Terminal Passthrough Mode directly to a
specific COM port.
Type Tn{ENTER}. Valid values for n are:
- 1 for COM1
- 2 for COM2
- 3 for COM3
- T for TTL port on COM2
- C for COMPASS port on COM2
Enter Terminal Passthrough Mode to a specific serial
sensor. ZENOSOFT
®
will turn on any specified
excitation voltage or switched power to the serial
sensor so that communications with the device are
possible.
Type TSn{ENTER}, where n is the Sensor Record
Number of the desired serial sensor.
If you use the first option to enter Terminal Passthrough Mode, ZENOSOFT
®
will ask several questions
to setup the necessary communication parameters for communicating on the specified COM port, such as
the port type, baud rate, and parity, as illustrated in the next example.
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