Siemens S7-200PLC Manual de usuario descargar pdf (Pagina 12)

Chapter

5.3 Step 3 - Creating tags in the eWON

1. Go back to the configuration menu and select Tag Setup. If you are starting from scratch, the

list of tags should be empty.

2. Select Create New Tag to open the tag configuration window and enter the parameters of the

tag you want to create.

Enter a Tag Name – free text, no spaces, no symbols (-, =, %, $, @, # etc.)

Enter a Description – free text (optional)

Select S7200 as IO server

In the Address field, enter the PLC register to be polled in the PLC.

Note: The register configured in the eWON must exist in the PLC. If you enter a

wrong address (syntax problem) the tag will be rejected (an error message will

be displayed). For error messages see next point.

Examples:

Address Pointing to

MW4 the Word at address 4 (in bytes) in the Internal Memory

HCL1 the High Speed Counter number 1, read it as Signed Word

AQW5 the Word at address 5 (in bytes) in the Analog Inputs zone

IB3 the Byte at address 3 (in bytes) in the Discrete Output zone

I5#2 the bit 2 from the Byte (read ’Bit access modifer’ note below) at address 5

in the Discrete Inputs zone

Polling Data Registers from Siemens S7-200 PLC Series (How to) Page 12/21

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Siemens S7-200PLC Manual de usuario Pagina 12