Delta DVP ES Programmable Logic Controller Series

PostedJanuary 4, 2023

UpdatedMay 9, 2023

ByMike Marquis

This guide will show you how to connect the Polar Monitoring Gateway to the Delta DVP-ES2 Programmable Logic Controller. It will also take you through the setup and parameters required on the DVP-ES2 to ensure communications to the Polar Gateway.

Steps to follow:

Connect power to the Gateway.
Connect RS-485.
Final checks.
Power on the system.
Configure the DVP-ES2 Serial Parameters

Delta DVP ES Connection Setup

1. Connect power to the Gateway.

Wire the Polar Gateway to a 12-24 V DC power supply. Connect the positive wire to the positive terminal and the negative wire to the negative terminal.

2. Connect RS-485.

Wire the RS-485 cable to allow communication with the Polar Gateway. Connect A+ => D+ (1) and the B- => D- (2).

3. Final checks

Before you switch on the Gateway and the device make sure you have done everything correctly in the previous steps.

Make sure the wiring is secure – no short circuits.
Check if the power cables are not loosely wired to the Gateway.
Check if the power cables are not loosely wired to the device.
Re-check the RS-485 twisted pair cable is correctly wired.

4. Power on the system

Now you are ready to go, you can now switch on the Polar Gateway and the DVP-ES2.

5. Configure Delta DVP-ES2 Serial Parameters

In order for the Gateway to correctly communicate with the DVP-ES2 controller, there will need to be some changes made to the communication parameters.

Note: It is critical to change the default settings to reflect the table below, these changes are made using an ISPSoft Software for PLC programming, you would need to understand PLC programming to do this or get a specialist to do that for you.

Serial Communication Setup

Name	Description	Parameter	Required
Station ID	Serial Slave ID/Node ID	Stat_Add	1
Baud Rate	Communication speed	Baud_R	1 = 9600
Data length	Communication data size	Data_Len	2 = 8 bits
Stop bits	Last bit indicating end m	Stop_B	1
Parity	Error checking	Parity	1 = None
Protocol	Modbus protocol	A_R	2 = Modbus TRU

Ladder Program

NB Power down and reboot the PLC after saving the above ladder program. After this the communication should work on the Polar Portal

You may now sign in to the Polar Portal to monitor the device remotely, the button on the right will take you through a setup process.