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CONTENTS
NX-series Safety Control Unit User’s Manual (Z930)
7-2-4 Attributes of Variables............................................................................................................... 7-14
7-2-5 Data Types................................................................................................................................ 7-15
7-2-6 Variable Attributes Other Than Data Type ................................................................................ 7-17
7-2-7 Function Block Instances.......................................................................................................... 7-18
7-2-8 Restrictions on Variable Names and Other Safety Program-related Names ............................ 7-18
7-3 Constants (Literals)............................................................................................................. 7-20
7-3-1 Constants.................................................................................................................................. 7-20
7-3-2 Types of Constants ................................................................................................................... 7-20
7-4 Programming Languages ................................................................................................... 7-22
7-4-1 Programming Languages ......................................................................................................... 7-22
7-4-2 FBD Language.......................................................................................................................... 7-22
7-5 Programming Operations ................................................................................................... 7-27
7-5-1 Programming Layer on the Sysmac Studio .............................................................................. 7-27
7-5-2 Registering POUs..................................................................................................................... 7-29
7-5-3 Registering Variables................................................................................................................ 7-38
7-5-4 FBD Programming .................................................................................................................... 7-43
7-5-5 Building..................................................................................................................................... 7-61
7-5-6 Searching and Replacing.......................................................................................................... 7-63
7-5-7 Safety Task Settings ................................................................................................................. 7-66
7-6 Monitoring Memory Usage ................................................................................................. 7-67
7-7 Offline Debugging ............................................................................................................... 7-69
7-7-1 Offline Safety Program Debugging ........................................................................................... 7-69
7-7-2 Monitoring................................................................................................................................. 7-72
7-7-3 Controlling BOOL Variables, Changing Present Values, and Using Forced Refreshing .......... 7-72
7-7-4 Setting the Initial Values of Variables........................................................................................ 7-72
7-7-5 Feedback Setting...................................................................................................................... 7-73
7-7-6 Simple Automatic Test .............................................................................................................. 7-74
Section 8 Checking Operation and Actual Operation
8-1 Procedures before Operation and Transferring the Required Data.................................. 8-4
8-1-1 Commissioning Procedure.......................................................................................................... 8-4
8-1-2 Data That You Must Transfer before Operation and Data Transfer Procedures......................... 8-6
8-2 Transferring the Configuration Information........................................................................ 8-7
8-2-1 Overview..................................................................................................................................... 8-7
8-2-2 Transfer Procedure for a Connection to NJ/NX-series CPU Unit ............................................... 8-8
8-2-3 Transfer Procedure for a Connection to Communications Coupler Unit..................................... 8-9
8-3 Operating Modes of the Safety CPU Unit .......................................................................... 8-11
8-3-1 Startup Operating Mode and Changing the Operating Mode ....................................................8-11
8-3-2 Restrictions in DEBUG Mode ................................................................................................... 8-14
8-3-3 Operation when Changing Operating Mode ............................................................................. 8-14
8-3-4 Executable Functions in Each Mode of the Safety CPU Unit ................................................... 8-15
8-4 Changing to DEBUG Mode ................................................................................................. 8-17
8-5 Checking External Device Wiring ...................................................................................... 8-20
8-5-1 Overview of Functions for Checking Wiring.............................................................................. 8-20
8-5-2 Monitoring a Safety I/O Unit...................................................................................................... 8-21
8-5-3 Troubleshooting Safety I/O Terminals....................................................................................... 8-26
8-5-4 Clear All Memory Operation for the Safety I/O Unit.................................................................. 8-27
8-6 Functions for Checking Operation .................................................................................... 8-29
8-6-1 Overview of Functions for Checking Operation ........................................................................ 8-29
8-6-2 Starting and Stopping the Safety Programs in DEBUG mode .................................................. 8-30
8-6-3 Monitoring Variables in the FBD Editor..................................................................................... 8-31
8-6-4 Monitoring Variables in a Watch Tab Page ............................................................................... 8-31
8-6-5 Controlling BOOL Variables, Changing Present Values, and Using Forced Refreshing .......... 8-33
8-7 Node Name........................................................................................................................... 8-43
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