The Modbus Slave program allows your Pocket PC to emulate up to 10 Modbus slave devices which can communicate with another Master device connected to the serial port or ethernet network port of your Pocket PC. The Master device can be a PLC, a SCADA system or any other device or piece of software which runs as a Modbus Master. You can also configure up to 10 data blocks to emulate the memory map of the slave devices. The individual data blocks are shown in a grid format on screen and can display up to 64 words of information at a time. You can easily scroll backwards and forwards through the memory map of the slave devices to show more data as required. You can simply click on a cell in the grid and modify the data value shown. A scripting facility is available so you can write your own code to simulate simple PLC type programs within the slave devices. These can be used for simple timers, watchdogs, setting values on change of state etc. A protocol trace screen is also available to show the raw data being sent and received from the Modbus devices. This trace can also be sent to a file if required.