Wiring
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What cable should I use for RS-485?
Belden 9841 or 9842, or equivalent from another manufacturer, is recommended for RS-485 wiring....
Read moreEstablishing RS-485 communications
Module is shipped in RS-232 mode. Seeing communication errors. Error: "-11" not seeing data enabling communication Set port jumper to RS-485 position Confirm wiring polarity and integrity Confirm communication parameters for port matches other device ...
Read moreWhat cable should be used for RS-485 communications?
Belden 9841 or 9842 is recommended for RS-485 wiring....
Read moreConnecting to the Mini-DIN connectors on a ProLinx module
The ProLinx modules are shipped with adapter cables which convert the Mini-DIN connector on the module to a standard DB9 male connector....
Read moreConnecting to the RJ-45 connectors on an MVI module
The MVI modules are shipped with adapter cables which convert the RJ-45 connector on the module to a standard DB9 male connector.Related Keywords:RJ45 RJ-45 MVI46 MVI56 MVI71...
Read moreAre terminating resistors necessary on my RS-485 network?
No, generally terminating resistors are not required, and can actually cause communication problems on the network. Every network is different, and has different requirements, but it is best to start without terminating resistors, and add then only if necessary.If terminating res...
Read moreHow many Modbus devices can I connect to my MCM module?
The Prosoft Modbus device port can be configured for either RS-232, RS-422, or RS-485. RS-232 allows a point-to-point connection, with 50 feet being the maximum length. RS-422 allows a multi-drop connection,with a maximum of 10 devices on the network. The maximum total distance i...
Read moreWhen using the 1451-9F terminal connector with my 3150 module, do I need to jumper pins 7 and 8 as shown in the manual?
No, the 1451-9F adapter has pins 7 and 8 jumpered internally....
Read moreAre terminating resistors required on my RS-485 network?
Not generally, and most of the time they generate more problems on the network. Our recommendation is to setup your RS-485 network without terminating resistors initially. If communication problems are seen which can be attributed to signal echoes or reflections, then a 120 OHM t...
Read moreCan the 145X-9F/25F terminal adapter be used for RS-232 communications?
No. The terminal adapters supplied are for use on RS-422 or RS-485 networks only.Related Keywords:ProSoft ProLinx serial communications...
Read moreHow can I connect my 4 wire RS-485 device to my ProSoft communication device?
The Prosoft communication module supports 2-wire RS-485 communications. Although not officially supported, it is possible to get at least some 4-wire RS-485 devices to communicate using the following steps. Jumper the receive + and transmit + pins together. Jumper the receive ...
Read moreMay I make my own PROFIBUS cables?
Yes, you may. Just be sure to use PROFIBUS specific cable (Belden 3079a or equivalent) and proper connectors designed specifically for PROFIBUS DP. At least two of the connectors (one at each end of the cable) will require PROFIBUS termination switches. Related Keyword...
Read moreCan the rubber boot on the RJ45 end of the ProSoft RJ45 to DB9M adapter cable cause communication disruption?
Oddly enough, yes, it can. That rubber boot is meant to protect the plastic clip on the RJ45 connector from being snagged and broken when the cable is pull though tight spaces. However, it can slide back and forth on the cable, as well.If it slides a little too far forward, towar...
Read moreWhat is the pin-out for RS-232, RS-422 and RS-485?
The attached document shows the pin-out diagrams for serial communications....
Read moreWhat is the part # and pin-out of the cable that came with my MVI serial module?
The part number for reordering the RJ45 to DB9 adapter cable provided with PLC serial modules is Cable 14.Pinout for the DB9 side: This is a straight thru adapter cable, pin 1-1, 2-2, 3-3, etc. Pin 9 on the DB9 side is not used.For the RJ45 side, while facing the module, the...
Read moreWhat are the pin outs for the RJ-45 jack on my Prosoft MVI module?
The pins in the RJ-45 jacks on the MVI-series modules are numbered 1, 2, 3,...8, top to bottom. Pin 1 is the topmost pin in the jack, pin 8 is the bottommost pin in the jack. You can eliminate the RJ45-to-DM9M adapter cable and wire your communication cables directly to the RJ45 ...
Read moreI have a device that expects power to be provided through a serial or Ethernet connection. Do ProSoft communciations solutions provide such power?
ProSoft inRAx, ProTalk, and ProLinx solutions do not provide any power via their serial or Ethernet ports.In the case of serial devices, if external adapters or adapter cables are used that expect to get power from the ProSoft solution's serial port, those devices will not work a...
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