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New Function: ISaGRAF Modbus Function Blocks -- Mbus_AR and Mbus_AW
To reduce the program codes, maintain the project easier and consume less CPU time.
 
 
ICP DAS releases new ISaGRAF Modbus function blocks Mbus_AR and Mbus_AW. The advantage is to reduce the program codes, to maintain the project much easier and to consume less CPU execution time. The new function blocks will help users a lot for the larger application design. Welcome our customers to try it now!
 
● Function Introduction
ISaGRAF PAC supports Modbus Master function to connect other Modbus Slave devices to read or write data. For example, ICP DAS provides many easy-to-used Modbus blocks to read or write the values of Word (16-bit signed), Real (32-bit floating point), Long Integer (32-bit long), Boolean (Bit), etc. But, when using many Modbus function blocks in a PAC (for instance, using 50 or may be 100 to 2000 Modbus blocks), the ISaGRAF projects become huge. This makes the program complicated and difficult to maintain.

The new Modbus function blocks, Mbus_AR and Mbus_AW, can input variable parameter values. If apply them in a “For” loop, the program can become much smaller and easy to maintain. The other advantage is the Mbus_AR and Mbus_AW blocks consume less CPU execution time.
 
● Related Supports
The ISaGRAF driver version listed below support the Mbus_AR and Mbus_AW blocks.
 
PAC
ISaGRAF Driver Version
WP-8xx7
V. 1.57 or later
WP-5147
V. 1.04 or later
VP-25W7/23W7/4137
V. 1.49 or later
XP-8xx7-CE6
V. 1.37 or later
XP-8xx7-ATOM-CE6
V. 1.02 or later
 
If your PAC's driver is older than it, please visit the following webpage to download the latest driver.
http://www.icpdas.com/products/PAC/i-8000/isagraf-link.htm

User can download this paper and example projects from the following web site.
http://www.icpdas.com/root/support/faq/isagraf.html  > FAQ-161 .
 
● More ICP DAS ISaGRAF Products Information
ISaGRAF PAC Datasheet : http://www.icpdas.com/products/PAC/i-8000/data sheet/data sheet.htm
ISaGRAF PAC Web : http://www.icpdas.com/products/PAC/i-8000/isagraf.htm
ISaGRAF PAC Manual : http://www.icpdas.com/products/PAC/i-8000/getting_started_manual.htm
ISaGRAF PAC FAQ : http://www.icpdas.com/faq/isagraf.htm
I-8K & I-87K high profile I/O modules : http://www.icpdas.com/products/PAC/i-8000/8000_IO_modules.htm
 
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