Bradley Smoker user manual Communicating with a PLC-5 Adapter Channel, Extended-Local I/O

Table of Contents 3

Communicating with a PLC-5 Adapter Channel

Block-Transfer Programming Considerations . . . . . . . . . . . . . . . . . 6-19

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

For Controller-Resident Local Racks . . . . . . . . . . . . . . . . . . . . . 6-20

Monitoring Remote I/O Scanner Channels . . . . . . . . . . . . . . . . . . . 6-21

Monitoring transmission retries . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

Addressing the I/O Status File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

Chapter 7

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Configuring Communication to a PLC-5 Adapter Channel . . . . . . . 7-2

Specify an Adapter Channel’s Communication Rate,

Address, and Rack Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 Specify the Discrete Transfer Configuration Files . . . . . . . . . . . . 7-5 Programming Discrete Transfers in Adapter Mode . . . . . . . . . . . . . 7-10 Programming Block-Transfers of Data to an Adapter Channel . . . 7-10 Configure Block-Transfer Requests . . . . . . . . . . . . . . . . . . . . . . 7-11

Examples of Block-Transfer Ladder Logic

Effects of Programming Block-Transfers to an Adapter-Mode Controller Channel on Discrete Data Transfer . . . . . . . . . . . . . 7-15 Monitoring the Status of the Adapter Channel . . . . . . . . . . . . . 7-17 Monitoring the Status of the Supervisory Controller. . . . . . . . . 7-18

Monitoring Remote I/O Adapter Channels . . . . . . . . . . . . . . . . . . . 7-19

Chapter 8

Communicating with	Using This Chapter	. 8-1
Extended-Local I/O	Selecting Devices That You Can Connect	. 8-1
	Cabling	. 8-2
	Addressing and Placing I/O	. 8-2
	Transferring Data	. 8-4
	Discrete Data Transfer	. 8-5
	Transferring Block Data	. 8-6
	Calculating Block-Transfer Completion Time	. 8-7
	Considerations for Extended-local Racks	. 8-8
	Configuring the Controller as an Extended-Local I/O Scanner . . .	. 8-9
	Monitoring Extended-Local I/O Status	8-12

Communicating with Devices on a DH+ Link

Chapter 9

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 Selecting Devices That You Can Connect . . . . . . . . . . . . . . . . . . . . . 9-1 Link Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 Configuring the Channel for DH+ Communication . . . . . . . . . . . . . 9-3 Using the Global Status Flag File . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5 Monitoring DH+ Communication Channels . . . . . . . . . . . . . . . . . . . 9-7

Monitoring Data Sent with Acknowledgment . . . . . . . . . . . . . . . 9-8 Monitoring Data Sent without Acknowledgment . . . . . . . . . . . 9-10

Publication 1785-UM012D-EN-P - July 2005