User`s manual

2 • Introduction
1.2 Outstanding Features of CYMOD
l Industry standard networking
All CYMOD modules use the RS-485 communication protocol for transmitting
and receiving at high rates and over long distance.
l Two-wire and multi-drop communication
A single twisted pair of wires is used to transmit and receive data between
modules. Multi-drop capability makes system configuration more flexible and
makes it easy to set up a network.
l High transfer speed
CYMOD modules provide up to 115.2K bps data / command transfer rate, which
can promote system bandwidth.
l Simple command / response protocol
All communications are performed with printable ASCII characters. This
allows the information to be processed with string functions common to the
most high-level languages.
l Industrial design
The screw terminal plug connectors on every CYMOD module ensure simple
installation and easy modification. The compact size allows the modules to be
mounted on DIN rail, back-panel wall-mount, etc.
l Watch-dog supervisory
CYMOD contains a watch-dog supervisory circuitry that will automatically reset
the module when the system fails. In addition, a user-programmable software
timer provides a "safe" output signal in the event of host computer failure.
l High isolation voltage
CYMOD provides photo -isolators, which ensure high isolation voltage
between the data acquisition circuits and the communication port. The fatal
electric-shock won‘t go through and damage all the modules on the network.
l Noise immunity
The CYMOD provide extra noise immunity capability. An electrode, which is
coated inside the ABS case, can reduce electro-magnetic interference (EMI)
and noise.