EasyManuals Logo

BEWATOR COTAG 4101-2 User Manual

Default Icon
158 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #71 background imageLoading...
Page #71 background image
4230/4232/4235 Communications modules
8-3
Controllers at remote sites
Any of the three types of Comms module can be configured to
communicate via a modem and a normal dial-up telephone line so
that 4101-2 Controllers at remote sites anywhere in the world can
pass messages to the host computer. At the host end of the system,
one or more modems can be connected to the host computer, or to
any other computer on your local area network. Each modem has its
own Modem Driver installed on the computer to which it is
connected. (If a computer has two modems connected to it, it needs
two Modem Drivers.) At each remote site, a modem is connected to
the upstream side of a 4232 Comms module, and Controllers or more
Comms modules are connected to the downstream side.
If the total number of Access Points in the system (both Local and
Remote Site) is more than 16, you need one 4230 Comms module set
to type F at the head of a Local Hardware System (even if the Local
Hardware System has no Controllers connected to it).
4-wire RS485 multidrop comms
Comms modules and Controllers talk to each other using a 4-wire
RS485 implementation. The dual screened twisted pair cable can be
up to 1km in length for a branch, a branch being one Comms module
talking to up to 32 devices (Controllers or other Comms modules).
Each Controller on a branch has an address set on its rotary
switches, and messages are addressed to individual Controllers.
RS232/RS485 conversion and baud rate
conversion
A Comms module can convert from RS232 to RS485 and vice versa.
RS232 is used for the computer and also for a modem or other RS232
serial device. If devices need to run at different baud rates then the
Comms module also carries out baud rate conversion.
Maximum of two Comms modules in any one
4101-2 Controller
Because a Comms module draws a lot of current from the +5V
supply, you must not install more than 2 Comms modules in any
one 4101-2 Controller.

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the BEWATOR COTAG 4101-2 and is the answer not in the manual?

BEWATOR COTAG 4101-2 Specifications

General IconGeneral
BrandBEWATOR COTAG
Model4101-2
CategoryController
LanguageEnglish