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MCT-MC
4.3
Appendix
- 145 -
FDC MCT-MC
Another consideration when selecting an interface converter is how the converter handles switching between
transmit and receive. Typically it is accomplished via a handshake line from
the PC. When data flows into the
converter from the PC, a handshake line is placed high. When data flows out of the converter to the PC, the
handshake line is placed low. In this way, the handshake line controls the direction of information. Another
method of achieving this is to use a built-in timer. The converter switches to transmit when a character is sent
to it from the PC. After a period of time when the PC has not transmitted, the converter switches to a receive
mode.
It is important that you understand how your converter accomplishes this task. You are required to wire this
feature or make settings on the converter to enable this function. The PC will not talk to the controller correctly
without properly setting this. Your converter may also require settings through dip switches, to set up
communications parameters like baud rate, data bits, start bits, stop bits and handshaking. The converter may
also require a separate power supply. Some converters get their power from the handshake lines of the PC. If
you rely on this method, you will need to wire these additional lines. In addition, your software must set these
lines high. A more reliable method is to use an external power supply. This is especially necessary when using
a laptop computer. See the documentation that is provided with your converter for more information.
Not all converters are equal in performance. If your equipment operates in a harsh, electrically noisy
environment, this can cause less robust converters to work intermittently or not at all. The following converters
have been tested and are compatible with the MC. The converter is equipped with automatic send data control
circuits, driver control in the converter hardware, so you don’t have to work with software at all. The circuit
monitors data flow and enables the driver during transmission and automatically disables it when no data is
being sent. There is no need to rework software or install new drivers.
US Converters
405 W. Fairmont Dr.
Tempe, AZ 85282
E-mail:
www.USconverters.com
Part #
XS201A
RS232 to RS485 Converter
Future Design Controls
7524 West 98th Place
Bridgeview, IL 60455
Phone: 888-751-5444
Fax: 888-307-8014
E-mail:
www.futuredesigncontrols.com
Part #
SNA10A
Smart Network Adapter
Part #
DB9M-DB9F-6ft
(Cable Accessory to connect SNA10A to PC)
Содержание MCT-MC 4.3
Страница 1: ...MCT MC 4 3 User Manual MCT MC 4 3 User Manual Rev A February 2018...
Страница 175: ...MCT MC4 3 Appendix 175 FDC MCT MC A 5 Power Supply Specifications DIN Rail Mount Power Supply Specifications...
Страница 176: ...MCT MC4 3 FDC MCT MC 176 Appendix...
Страница 177: ...MCT MC4 3 Appendix 177 FDC MCT MC Open Frame Power Supply Specifications...
Страница 178: ...MCT MC4 3 FDC MCT MC 178 Appendix...
Страница 179: ...MCT MC4 3 Appendix 179 FDC MCT MC A 6 Power On Delay Relay Specifications GE1A C10HA110...
Страница 180: ...MCT MC4 3 FDC MCT MC 180 Appendix...