Laurel Electronics LTE SERIES TRANSMITTERS PULSE INPUT User Manual
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3. COMPLEMENTARY MANUALS
This manual covers LTE Series DIN rail transmitters
with isolated Ethernet and 4-20 mA outputs,
dual relays, and pulse inputs to the microcomputer. The signal conditioners be for dual pulse inputs, for
quadrature, or for an analog signal (4-20 mA, 0-1 mA or 0-10V), which is converted to a pulse input by a
voltage-to-frequency converter. This manual
covers hardware aspects such a pinout and on-board
jumpers, and transmitter setup such as scaling and relay setpoints. It also presents the main
commands and text strings to be used with the Modbus and Custom ASCII communications
protocols. It is intended to be used with the following separate manuals:
• Ethernet Manual. Covers Ethernet Node discovery and setup using Node Manager PC
Software or the Web Server Software built into each Node. Required for use of Ethernet
transmitters and normally shipped with this manual.
• Modbus Communications Manual. Covers strings and commands to be used with the
Modbus protocol (if selected). Intended for programmers.
• Serial Communications Manual. Covers strings and commands to be used with Custom
ASCII protocol (if selected). Intended for programmers.
LT Series DIN rail transmitters with isolated 4-20 mA and RS232/RS485 outputs, dual relays,
and a pulse input signal conditioner are covered in a separate manual.