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RS232-RS485 Convertor Manual V1.02 28/06/01
7
3.2 PRO101 Hardware Installation Instructions
• Place the PRO101 programmers side-by-side on a flat surface allowing sufficient space
in front of each programmer to place the ‘ISP Interface Modules’ and ‘Target Systems’.
• Remove the lid of each programmer by removing the four screws in the lid.
• Set the ‘Communications Mode Switch’ (S2) to ‘RS-485’.
• Set the Communications Node Address to the required unique address (0 to 15).
• Plug the 9-way RS-232 cable into the port on the RS-232 to RS-485 convertor and
connect further PRO101 programmers as shown in the diagram below.
Figure 10
• Plug an RS-485 network cable from one of the RS-485 outputs on the RS-485 convertor
to the ‘RS-485 Input’ connector on the rear panel of the first PRO101.
• Plug another RS-485 network cable from the ‘RS-485 Output’ connector on the rear
panel of the first PRO101 to the next PRO101 in the chain.
• A return RS-485 cable from the last PRO101 in the chain to the RS-485 convertor is
NOT required.
• Power up the PC.
• Plug in the power supply adaptor supplied with the RS-232/RS-485 convertor into a
spare mains socket.
• Power up all PRO101 programmers.
• Launch the ISP-PRO software on the PC and set up the required number of PPM’s
within the software.
• Test that all PPM’s are communicating with the PC at their correct ‘Node Address’. (The
Node Address may be changed while the programmer is powered up).
• When all PRO101’s are recognised by the ISP-PRO software, power down all
programmers and replace lids.