Chapter 11 Convenient Functions
11-23
The limitation on data exchange performed by an AH500 series CPU module is described below.
Device Device range
Maximum length of data which
can be read/written
450 registers/100 registers
*
7200 contacts/1600 contacts
*
*. Maximum length of data which can be read/written (Reading data and writing data
synchronously)=Maximum length of data which can be read/written (Reading data and writing data
asynchronously). A PLC which is not an AH500 series CPU module can read/write the data in 100
registers at most, and the data in 1600 contacts at most.
If an AH500 series CPU module is a master station, DVP series PLCs can function as slave stations.
DVP series PLCs can read data and write data simultaneously.
Model
Device
code
Maximum
address
which can
Maximum
relay
address
which can
Communication
port which
supports RS-485
Maximum length of data which
can be read/written (word)
*
Reading and
writing data
Reading and
writing data
*. DVP series PLCs can modify the data length automatically.
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