Chapter 11 DeviceNet Remote I/O Module AHRTU-DNET Explanation of message variable edit interface: After multiple Tx and Rx packets are built, right click on the box of “Command List” to create a new item and double click the new item to edit the packet and plan the execution sequence of all commands. 11-47 Item Explanation Format To set the format of the data Null: No action of the data is taken. Hex: It converses data from ASCII into hex format. The character which can not be conversed will be changed to 0. ASCII: It converses the data from hex into ASCII. The character which can not be conversed will be changed to 0. Variable To display the edited packet content value Variable Function:
Read R ( ) Write W ( ) and * (indicates no action) are for option. For TX packet, Read R ( ) can be selected. For RX packet, both of Read R ( ), Write W ( ) and * can be selected. Mapping Register: The internal register in AH10SCM-5A or register in PLC CPU can be selected. The internal register in AH10SCM-5A includes I1, I2, O1, and O2 for PLC CPU, the D device can be chosen directly. Length Function: Read R ( ), Write W ( ) or Constant are selectable. Mapping Register: The internal register in AH10SCM-5A or register in PLC CPU can be selected. The internal register in AH10SCM-5A includes I1, I2, O1, and O2. For PLC CPU, the D device can be chosen directly. Constant:
Size of the length (Unit: Byte)