ICP DAS USA tM Series, User Manual

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1. Introduction
The tM series is a family of network data acquisition and
control modules, providing digital input/output and counter
functions. The modules can be remotely controlled using a set
of commands, which we call the DCON protocol, or the
standard Modbus protocol. Communication between the
module and the host is via an RS-485/RS-232 bi-directional
serial bus standard. Baud Rates are software programmable
and transmission speeds of up to 115.2 Kbps can be selected.
The tM series feature a new design for the frame ground
and INIT switch as shown in the figure. The frame
ground provides enhanced static protection (ESD)
abilities and ensures the module is more reliable. The
INIT switch allows easier access to INIT mode. Please
refer to Sections A.1 and A.3 for more details.
The tM series modules support TTL signal, photo-isolated
digital input, relay contact output, solid-state relay output, and
open-collector output.
tM Series DIO User Manual, Rev: A1.3 7PH-013-A13 5
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