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RS485-ISO
Communications
Adapter
The
RS485-ISO is designed to take RS-232 from the communications port
of the Smart Motor and convert it to RS-485. It incorporates the
adapter into a 7 pin, 7W2, D-sub backshell. RS-485 provides improved
noise immunity over cable lengths of up to 1,000 ft (305m). It also
allows a network of up to 100 SmartMotors to be operated in parallel
instead of daisy-chaining the communications from one motor to the
next. This feature reduces the burden of coordination for many multi-axis
applications. The converter circuit is entirely housed and protected
by the supplied cable backshell. It draws power and ground from
the SmartMotor main connector (pins 2 and 5). It also requires
the use of the main connector G-Synch line (pin 1). The G-Synch
line is used to bias the state of the balanced line, allowing motor-to-host
communications. Firmware support for the RS485-ISO adapter is provided
by the OCHN command. The OCHN command must reside in the stored
user program for a motor to communicate correctly upon power-up.
The RS485-ISO communications adapter can be ordered as part of a
completed cable, or as a kit to be used in the creation of a cable.
Features
* Noise immunity.
*
Extended range.
*
Convenient size and mounting.
*
Product compatible.
*
Firmware supported.
Benefits
*
Ideal for noisy industrial environments
involving such things as TIG welding or plasma heads.
*
Cable runs of 1,000 feet possible for
remote applications (305m).
*
Mounts neatly inside the cable connector
backshell.
*
The RS485-ISO converter is compatible
with all SmartMotor,
firmware J3 or later.
*
Firmware includes built in OCHN mode.
Electrical:
Bus DC line Voltage: 5VDC
Driver Output Voltage Unloaded 2VDC min, -2VDC min
Driver Output Voltage Loaded 2VDC, -2VDC
Receiver Voltage Range +12VDC to -7VDC
Mechanical:
Dimensions: see figure
Weight: 0.5 oz (14.2g)
Environmental:
Operating Temperature: 0 to 50? C
Storage Temperature: -20 to 70? C
Humidity: 0 to 90% non condensing
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