Chromalox 3101 User Manual

Chromalox 3101 Operator's Manual 45
Section 9
Digital Communications
The Digital Communications option is provided on
the following controllers:
Model Communications
3101 - 11* 1* RS232
3101 - 11* 2* RS485/422
The Digital Communications option gives the 3101
the ability to interface with computers using either
Chromalox’s Computer Interface mode or ASCII
Line mode. These modes implement communi-
cations that can address up to 255 Chromalox
controllers on an RS422A/RS485 multidrop line.
The protocols for these two modes are described
in the Digital Communications User’s Manual that
is supplied with controllers containing the Digital
Communication option.
ChromaSoft™
If a prepackaged software program is preferred
for multidrop digital communication with up to
255 Chromalox controllers, Chromalox offers
ChromaSoft remote operator interface software.
ChromaSoft is DOS-based and communicates
with the controllers via a serial interface port. In-
structions for using ChromaSoft are given in the
User’s Manual provided with the software.
Hardware Setup
RS232 can be used to connect a computer or mo-
dem to a single 3101 controller. RS232 lines can
be run over distances up to 50 feet.
RS422 and RS485 provide multidrop network
communications where up to 255 controllers can
communicate with a single computer at a distance
of up to 4000 feet.

Chromalox 3101 Specifications

General

Brand	Chromalox
Model	3101
Category	Controller
Language	English