DH-485 to PROFIBUS DP Master Communication Module

Product Description

The ProLinx family DH-485 to PROFIBUS DP Master communications module (5104-DH485-PDPM) creates a powerful connection between devices on a DH-485 network and a PROFIBUS slave device. The module is a stand-alone DIN rail-mounted protocol gateway that provides one DH-485 configurable serial port and PROFIBUS DP Master port.

The ProLinx DH485 protocol driver supports the Master and the Slave modes of the protocol, providing powerful data transfer capability with Rockwell Automation PLCs and HMIs. User configurable data mapping make the interface an easy to use and powerful data transfer tool.

The PROFIBUS DP Master (PDPM) protocol driver supports Master implementations of the protocol on either a Mono-Master or Multi-Master network.

Product Applications

Functional Specifications

Internal Database

The ProLinx module contains an internal database that consists of areas for application data, status information, and configuration information.

The internal database is shared between all ports on the module and is used as a conduit to pass information from a device on one network to one or more devices on another network.

Application Data Area

The data area is used to store and retrieve data by the protocol drivers and for data exchange between protocols. The database is used as a source for write commands to remote devices and holds data collected from the remote devices. Commands defined in the configuration file (stored in the configuration data area) control how the data is to be handled in the database.

Status Data Area

This area is used to store error codes, counters, and port status information for each port.

Configuration Data Area

This area contains module configuration information such as port configuration, network information, and command configuration. This configuration file is downloaded to, or uploaded from, this area.

DH485 Master/Slave Serial Port Specifications

The DH485 protocol in its native form is a peer to peer token passing network. The ProLinx DH485 driver accesses the network functioning either as a Master or as a Slave.

In the Master mode, the ProLinx DH485 driver will actively gather data from other devices on the network, controlling the read/write data transfer between the gateway and other DH485 devices, such as SLC processors. When configured in this mode, data transfer can be initiated and executed with the other devices without any ladder logic being required in the Rockwell Automation slave hardware.

DH485 Slave Mode

In the Slave mode, the module accepts commands from one or more Masters to read/write data stored in the module's internal data memory. In this mode, the ProLinx unit is answering DH485 commands and has the appearance of an SLC processor to the network.

DH485 Master Mode

In the Master mode, the ProLinx DH485 driver will actively gather data from other devices on the network, controlling the read/write data transfer between the gateway and other DH485 devices, such as SLC processors. When configured in this mode, data transfer can be initiated and executed with the other devices without any ladder logic being required in the Rockwell Automation slave hardware.

These commands are user-configured in the module via the master command list received from the configuration file. Command status is available in the status data block for each individual command in the command list status data area. The location of this status block in a module's internal database is user-defined.

PROFIBUS DP Master Protocol Specifications

The PROFIBUS Master protocol driver exists as a single port implementation. The driver can be configured as a Class 1 PROFIBUS Master to interface with other PROFIBUS slave devices. The unit is also used for configuration of the nodes on the PROFIBUS network. It provides access to both standard as well as extended diagnostic information. The PROFIBUS master port can be used to continuously interface with PROFIBUS slave devices over a serial communication interface (RS-485).

PDPMV1 Compatibility Notice to PDPM Users

The PDPMV1 product is not backward compatible with the PDPM product due to new enhancements and command structure. The PDPMV1 DPV1 master gateway product provides enhanced features to the PDPM DPV0 gateway product as follows:

1. Increased Cyclic IO. The DPPMV1 provides 768 Words of Input and 768 Words of Output.
2. ProSoft Configuration Builder (PCB) complete support. The PCB provides module level configuration and integrated PROFIBUS master network configuration support.
3. The PDPMV1 master supports DPV1 Class 1 or Class 2 DPV1 features such as: Acyclic communication with slaves for parameterization and other slave settings, Alarm handling, extended diagnostics.

Hardware Specifications

Certifications

Ordering Information

To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here.

Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.

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