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.