Introducing the PLC2/DHII Interface
Chapter 2
215
Generated Commands
You can program the PLC-2/DHII interface to generate the following
types of commands:
Read Commands:
- Read Block
Write Bit Commands:
- Protected Write Bit with No Reply
- Protected Write Bit with Reply
- Unprotected Write Bit with Reply
- Protected and Verified Write Bit
Write Block Commands:
- Protected Write Block with No Reply
- Protected Write Block with Reply
- Unprotected Write Block with Reply
- Protected and Verified Write Block
Immediate-Access Commands:
- Read Immediate-Access Block
- Update Immediate-Access Block
Accepted Commands
The PLC-2/DHII interface can accept commands from remote nodes. The
interface will interpret the command, check switches and programming
rungs for restrictions, and execute the command without any extra
programming on the user’s part. The following is a list of command types
accepted:
Generated Commands
Other Data Transfer Commands
Upload/Download
Diagnostics
Remote Programming
Remote Command Control Commands (Third-Party)
Station Management
Generated Commands
Obviously, the PLC-2/DHII interface can accept all commands that it can
generate. All read, write bit, write block, and immediate-access
commands are accepted by the interface.
