Delta AH500 series, Hardware Operation Manual

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C h a p t e r 11 C o n v e n i e n t F u n c t i o n s
11 - 2 3

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
Relays M0~M8191
450 registers/100 registers
*
7200 contacts/1600 contacts
*
Data register D0~D65535
Link register L0~L65535
*. 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
data register
address
which can
be used
Maximum
relay
address
which can
be used
Communication
port which
supports RS-485
Maximum length of data which
can be read/written (word)
*
Reading and
writing data
synchronously
Reading and
writing data
asynchronously
ES 0x0000 D599 M999 COM2 100 100
EX 0x0001 D599 M999 COM2 100 100
SS 0x0002 D599 M999 COM2 100 100
EC 0x0003 D599 M999 COM2 100 100
EH 0x0004 D9999 M4095 COM2 100 100
SA 0x0006 D4999 M4095 COM2 100 100
SC 0x0007 D4999 M4095 COM2 100 100
SX 0x0008 D4999 M4095 COM2 100 100
SV 0x0009 D9999 M4095 COM2 100 100
EH2-L 0x000A D9999 M4095 COM2 100 100
EH2 0x000B D9999 M4095 COM2 100 100
ES2 0x000C D9999 M4095 COM2 and COM3 50 100
EX2 0x000D D9999 M4095 COM2 and COM3 50 100
SS2 0x000E D4999 M4095 COM2 50 100
SX2 0x000F D9999 M4095 COM2 50 100
SV2 0x0010 D11999 M4095 COM2 100 100
EH3-L 0x0011 D11999 M4095 COM2 and COM3 100 100
EH3 0x0012 D11999 M4095 COM2 and COM3 100 100
SA2 0x0013 D9999 M4095 COM2 and COM3 50 100
MC 0x0014 D9999 M4095 COM2 50 100
SE 0x0015 D11999 M4095 COM2 and COM3 50 100
*. DVP series PLCs can modify the data length automatically.