IC697CHS790G
IC697CHS790G
产品:PLC CPU模块CPX935,版本8.00
IC697CPX935-CC
目的
本文档适用于CPU模块IC697CPX935。它讨论了三个主题:(1)
关于该模块的一般信息,(2)当前固件版本8.00的特性,以及
(3)以前的固件版本7.92的功能。因为有些信息不是
可在任何其他出版物中使用,建议您保存此文档以备将来使用
参考。
FM批准
从版本IC697CPX935-BA开始,该CPU带有FM批准。,修改
不涉及任何硬件更改。
MS-DOS编程软件
从版本IC697CPX935-BA开始,MS-DOS版本7.02的副本
编程软件被封装在CPU模块中。
从版本IC697CPX935-CA开始,MS-DOS的升级副本
编程软件封装在CPU模块中。
识别
硬件识别总结如下表所示
Coprocessor Modules) use IC697PCM711J or later. It is also highly recommended that
systems using BTMs (Bus Transmitter Modules) use IC697BEM713B or later. Use of
boards of an earlier revision may result in lower system performance.
PCM (to CPU) Communications Timeout
The PCM has a default backplane communications timeout value of 5 seconds. After
the PCM has sent a request to the IC697 CPU, the PCM applies this timeout while
waiting on a response back from the CPU. In most cases, the CPU will respond well
within the 5–second timeout; however, in certain instances the CPU can take longer
than 5 seconds to respond. These cases are limited to LOADs or STOREs of program
and/or configuration - especially if blocks in the program are larger than 8 KBytes. Folders
containing EXE blocks (again with *.EXE files >8 KBytes) are most likely to cause problems.
Beginning in Release 6.00, Standalone C programs larger than 8 Kbytes also cause this to
happen.
Beginning in Release 5.50 of the IC697 CPUs, the CPU is guaranteed to respond
within 8 seconds. To ensure that the PCMs do not observe backplane timeouts, a file
must be loaded (using termf) to the PCM. The file must be a binary file named
CPU.ENV. The contents of this file are as follows (all values are specified in