Omron V022-E3-1 6-4-2How to Control NT600S Functions, Section, Procedure, Application

￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿ Section 5-4

6-4-2 How to Control NT600S Functions

This￿section describes how to control the functions of the NT600S.

Restrictions on allocating words

The PT status control area (PC → PT) can be allocated to the PC memory areas listed in the following table.

Symbol	C Series PCs	Allocated	CVM1/CV Series PCs	Allocated
DM	Data memory	✓	Data memory	✓
CH	Internal/Special Relay	✓	Internal/Special Relay	✓
TIM	Timer		Timer
CNT	Counter	￿	Counter
HR	Holding Relay	✓	--
AR	Auxiliary Relay	✓	Auxiliary Relay	￿
LR	Link Relay	✓	--

		✓ : OK ￿: NG
Reference Since all the CVM1/CV-series special auxiliary relays are allocated to the system,
	they cannot be used for applications not related to the system.
	The range of each memory area differs according to the PC type. See “Appendix L
	PC Memory Map” (page 291) for more details.
Procedure	1. Use the support tool to allocate the PT status control area (PC → PT) to the PC
	memory.
	2. Create a PC program to write control data to the “PT status control bits” of the
	￿PT status control area.
	Control timing of PT status control bits
	The PT status control area (PC → PT) is not read when the NT600S starts up. It
	is only read, and control is only executed, when the contents of the PT status
	control area are changed after the NT600S has been started up.
	Since control of the NT600S statuses is executed after the bits corresponding to
	the PT status control bits have changed, to execute control again the corre-
	sponding bits must be specified again.
Application	This example is of the NT600S being used as a warning lamp by using PT status
	control￿	bits.

Support Tool Settings

Make the following setting using the support tool.

Allocated word for the PT status control area: 0100

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