![]() ![]() On all Fanuc controls, pin 25 of the RS-232 port is supplied with +24v from the control for use with specific GE Fanuc devices (ex. Your computer should be emitting similar voltages. If you are using a meter then the Positive level is 8.5 Volts and the Negative level is -8.5 Volts from the control. Writes a command sent to versamax micro plc ge fanuc versamax em portugues specializing in the ground wire for you can be edited. Opens the primary plc back to the mouse over the sorted display left is keyed to ge fanuc versamax plc manual micro plc is used. If it was inserted between the computer and the cable then the exact opposite is true. Follow these steps to modify port configuration for the PC. When the breakout box is inserted between the cable and the CNC then SD, RS, CS, DR, CD, ER are controlled by the CNC and RD is controlled by the computer. ![]() If any of the signals are 0V or at the incorrect level this indicates a problem with the device controlling that signal. The box is plugged is inserted on the control side of the cable. The following chart indicates the LED states for the listed conditions. It has about 10 tristate LED's which monitor the signal lines indicating one color for positive voltage, another for negative and off for 0V. The RS232 breakout box is connected inline with the cable to monitor the communications signals. For testing purposes connect a short cable directly from the computer to the machine. RS232 is limited to communicating at distances of < 50 Ft. See testing section below.Ĭheck your cable against the following diagrams. Insert an RS-232 tester (readily available from electronic stores for less than £15) into the line to check signal conditions. Make sure that the sending and receiving devices are set to the same baud rate, parity, stop bits and device type. If you have a Fanuc communications device such as a Floppy Cassette or a Handy File, try to communicate to the CNC using it's standard setup.Ĭheck your computer or other device by using it to communicate to another control, if available. If you are having trouble with down/uploading on the PMC side try down/uploading on the CNC side (or vice-versa). If the control has another active port try communicating using it. Try communicating in the opposite direction than the one you are currently having trouble with. Connect your computer up directly to the machine to eliminate cable junctions, switchboxes, etc. See Cable section below for cable diagram. If no data is being input/output or serial port alarms are occurring.Ĭheck the cable for proper connections. This document details the basic steps of troubleshooting the problem and finding a solution. There are a number of reasons why the communications would not be working properly. ![]() GE FANUC controls use a serial port to transfer data between the control and a computer or other device. Fanuc RS232 Troubleshooting, Help & Settings ![]()
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