EasyLog | S43-RS485

US$26.99 ex. tax

Add-on board allowing RS485 communication.

In stock

S43-RS485 US$26.99 ex. tax

The S43-RS485 is an accessory to the PanelPilotACE range and is compatible with the 4.3” PanelPilotACE display module (SGD 43-A). The S43-RS485 mounts on the rear of the SGD 43-A and provides a 3 wire RS485 interface as well as an optional 120Ω terminator.

This device can be connected to via the A (Data+), B (Data-) and GND pins and provides half duplex communication.
The software currently supports ASCII based serial communication as well as the MODBUS (RTU) protocol. More protocols are being added.

Receiver Output High Voltage Vcc-0.6 (4.4V)
Receiver Output Low Voltage 0.17 Typical (0.4 Maximum)
Input Current (V = 12V) 80uA Typical (125uA Maximum)
Input Current (V=-7V) 50uA Typical (-100uA Minimum)
Max Data Rate 20Mbps
A/B Voltage Absolute Maximum -8V – +13V
Operating Temperature Range 0 to 40°C

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How do I use RS232 in the design studio?

The RS232 works using three elements, one hardware element (Serial COM Port) and two function element (RS-232 Receive and RS-232 Send).

Within the hardware element you must specify standard RS232 properties (baud rate etc.). You must also specify the service type; native if you wish to communicate with another PPA device, Terminal otherwise. The “Terminal Mode” property specifies whether the data should be wrapped with a prompt (easy to use within a terminal) or should be raw (device to device). Then you will need to specify send/receive terminators and separators. The terminator signifies the end of a given RS232 command and the separator is the character used to separate multiple values.

The RS-232 Send element allows you to specify a serial port (the hardware element) and then numerous “Send Values”, this element can be called much like any other action and when it is it will send each value (enclosed within specified pre and post messages) separated via the “Send Separator” specified in the hardware element and ended with the “Send Terminator” specified in the hardware element. The values will be sent in sequential order from top to bottom.

The RS-232 Receive element allows you to specify a serial port (the hardware element), when this has been selected you will be able to specify an “Alias”. In order for an RS-232 Receive to be used it must have a unique identifiable command at the beginning, if no alias is specified then the name of the RS-232 Receive element will be used as the command; if an alias is specified then the Alias will be used as the command. A Receive Separator should follow this and then all values you wish for the device to receive also separated by the Receive Separator and then finished with the Receive Terminator. Then you will specify a list of receive properties/variables, this is where the values will be stored again sequentially from top to bottom as first received to last received.

For example if the Alias was set to “rx”, separator set to comma and terminator set to [CR][LF] and the specified receive value was a text boxes Text property then the following would set the text boxes text value to “Test”:

RS-232 Receive also gives you the option to perform an action once the receive has been completed so you could store a value as a variable and then call an action to display it or modify it with a maths builder before displaying it.

What protocols are supported over RS485?

Currently ascii based raw data and MODBUS, however we are working to add new protocols such as CANBUS, if you have any protocols you would like to see then please contact us.

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