Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET 11.1 Introduction of AHRTU-DNET-5A 1. Thank you for choosing Delta AHRTU-DNET-5A. To ensure correct installation and operation of the device, please read the instruction carefully before use. 2. This manual only provides introductory information on AH10PFBS-5A. Detailed information about DeviceNet protocol is not included in this manual. Please refer to relevant literatures for more information on DeviceNet protocol. 3. Defined as a remote I/O module for data exchange, AHRTU-DNET-5A is used for connecting AH500 series I/O module, analog I/O module, temperature module and AH10SCM-5A module to the DeviceNet network.
11.1.1 Feature It supports the standard DeviceNet communication protocol as the DeviceNet slave. It supports explicit connection via predefined Master/Slave connection set. It supports polling. The network configuration software DeviceNet Builder provides the graphic configuration interface, automatically scans and identifies I/O modules, randomly maps the parameters of special modules as I/O exchange data, sets the methods to deal with the errors and diagnoses the error status of each module. According to the actual need, users select whether to retain the buffer register information when the network is offline.
It is can be connected to one main rack, 7 extension racks and 68 AH500 series I/O modules. The maximum input and output data it supports: 980 bytes respectively It supports a hot swap.
(When power ON, the device can be plugged directly for use after being removed.) 11.1.2 Function and Specifications DeviceNet connection DeviceNet communication 11-3 Item Specification Transmission method CAN Electric isolation DC 500 V Interface Removable connector (5.08 mm) Transmission cable 2 communication wires, 2 power wires and 1 shielded wire (The shielded wire must be connected to the ground and the communication wire must keep away from the power cable) Voltage 11~25 V DC, supplied by DeviceNet network Current 60 mA Item Specification Communication protocol Standard DeviceNet communication protocol Message type I/O polling, explicit, Group 2 only servers Baud rate Standard:
125 kbps; 250 kbps; 500 kbps Extension: 10 kbps; 20 kbps; 50 kbps; 125 kbps; 250 kbps; 500 kbps; 800 kbps; 1Mbps