S43-RS485 Lascar

S43-RS485 RS485 Add-On Board for 4.3 PanelPilotACE Display S43-RS485 is an add-on board for the SGD 43-A that allows communication using the RS485 serial interface. SGD 43-A display sold separately The S43-RS485 is an accessory to the PanelPilotACE range of compatible displays and panel meters 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 120 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. Please visit www.lascarelectronics.com/software/panelpilotace for the latest updates. Specifications Electrical Specification Absolute Maximum A/B Voltage -8V - +13V Min Typical Max Temperature Range 0 to 40C Receiver Output High Voltage Vcc-0.6 (4.4V) - - Receiver Output Low Voltage 0.17 0.4 - Input Current (V = 12V) 80uA 125uA Input Current (V=-7V) -100uA -50uA Max Data Rate 20Mbps www.lascarelectronics.com/panelpilot electronics Issue 2 02/2017 Page 1 of 2S43-RS485 RS485 Add-On Board for 4.3 PanelPilotACE Display Dimensions and Mounting All dimensions are in mm (in) 115.3 (4.5) 31.8 (1.3) 119.2 (4.7) The diagram (above-right) indicates which pins on the SGD 43-A that the S43-RS485 should be connected to. Configuring RS485 When configuring a project to use RS485 on the SGD 43-A you will lose the ability to use PWM1, PWM2, PWM 3 and DIG8. All other pins on PL4 are brought through onto the header on the S43-RS485. You will need to select the direction control pin to be either DIG8 or PWM3. This is done on the S43-RS485 board by selecting either DIO or PWM with the jumper link on PL1. Finally, you can either fit or remove the jumper on PL2 to add or remove the terminating resistor. www.lascarelectronics.com/panelpilot electronics Issue 2 02/2017 Page 2 of 2 79.8 (3.1) 75.9 (3.0)