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Remote control principle and description of the electric thermostat GX, DHG series

The connection and real-time monitoring of several (up to 16) units is achieved by remote control via software. The drying oven is equipped as standard with an RS485 interface for connection to a PC and the accompanying software.
Connection of the drying oven: The 485 output interface on the device is plugged into the RS485 to 232 interface (RS485 to the device, 232 to the PC), several devices are connected in parallel and then to the RS485 to 232 interface. In order to facilitate remote data communication between computers, external devices or intelligent instruments equipped with different standard serial interfaces, the standard serial interfaces must be converted to each other. The converter is compatible with the RS-232 and RS-485 standards and is capable of converting single-ended RS-232 signals into balanced differential RS-485 signals.
Drying oven settings: Instrument address: (User parameters → Communication address), modify to non-repeating values, e.g. 1, 2, .... PC query, communication ports COM1, COM2, COM3, COM4, My Computer → Properties → Device Management dish. Open the software, select the corresponding communication port and select the corresponding device number device.
Fault and troubleshooting: 1. Data communication failure
(1) Check if the RS-232 interface wiring is correct
(2) Check whether the RS-485 output interface is wired correctly
(3) Check that the terminals are well connected
2. Data loss or error
Check whether the data rate and format at both ends of the data communication equipment are consistent.
Kenton (Hengli) laboratory Co.

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