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General

Connect Delta

Reference guide for Delta DVP, AH, and AS series PLC communication.

Proxus supports Delta Electronics PLCs, widely used in automation, via Modbus-compatible native drivers.

Supported Protocols

Protocol TypeSeriesConnectionPortDescription
Delta_TcpDVP-SE, AH, ASEthernet502Standard Delta Ethernet Protocol
Delta_Serial_OverTcpDVPSerial/Ethernet502RTU over TCP
Delta_SerialAscii_OverTcpDVPSerial/Ethernet502ASCII over TCP

Connection Parameters

ParameterTypeRequiredDefaultDescription
HoststringYes-PLC IP Address
PortintNo502Modbus Port
StationbyteNo1Station ID (Slave ID)
AddressStartWithZeroboolNotrueAddress 0-based indexing
isCheckMessageidboolNotrueVerify transaction IDs

Address Syntax

Delta uses specific device codes. Note that input/output addressing is often in Octal.

AreaPrefixDescriptionExample
Data RegisterD16-bit WordD100, D0
Internal RelayMBitM100, M0
InputXInput (Octal)X0, X7, X10
OutputYOutput (Octal)Y0, Y7, Y10
TimerTTimer ValueT100
CounterCCounter ValueC100
info
Octal Addressing

For X and Y devices, the address jumps from 7 to 10 (e.g., X0...X7, then X10). Proxus handles this automatically if you use the correct string syntax.


Troubleshooting

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Need Help?

For Delta-specific error codes, see Delta DVP Error Codes. For general connectivity issues, see Gateway Issues.

Official Resources