Allen-Bradley GuardPLC 1753, Справочник по безопасности

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102 Publication 1753-RM002C-EN-P - September 2008
Chapter 9 Configuring Communication
Worst-case Reaction Time
The maximum response time from the occurrence of a physical input
signal change until the reaction of the physical output signal (see the
illustration below). Data transfer is carried out by means of safety
protocols.
High-speed Safety Protocol
The following characteristics of High-speed Safety Protocol let it
exchange device signal layouts between RSLogix Guard PLUS! and
RSNetWorx for DeviceNet software.
HSP Signature
The High-speed Signature is a read-only value that represents the
layout of the device signals exchanged between the GuardPLC
controller and the DeviceNet safety scanner. The HSP signature is
calculated based on the layout of the device signals in RSNetWorx and
is passed to RSLogix Guard PLUS! software via the Scanner Signals
File. The HSP signature changes only when a modification occurs in
the layout of the device signal exchanged between the controller and
scanner.
Target Connections File
The Target Connections file is a file used to pass target connection
information for application signals you want to make available for
read or write access by the GuardPLC controller to another safety
originator or standard master on the DeviceNet network.
Scanner Signals File
The Scanner Signals file defines the layout of the safety and standard
device signals that the scanner makes available to the controller. This
file is generated by RSNetWorx for DeviceNet and sent to RSLogix
Guard PLUS! software.