The Input/Output Mapping Areas - Delta AS Series Operation Manual


Use this service to read an error or an alarm from a slave.

You can store up to 5 emergencies in a slave.

You can read emergencies from a slave through a PLC ladder diagram.
6. It supports the SYNC object (synchronous object) service.
7. Several devices can operate synchronously through the synchronous object service.
8. The supported CANopen communication rates are: 20K, 50K, 125K, 250K, 500K, and 1Mbps.
The supported mapping data types are:
Storage
8-bit SINT USINT BYTE
16-bit INT UINT WORD
32-bit DINT UDINT REAL DWORD
64-bit LINT ULINT LREAL LWORD
The CAN port has the following functions when acting as a slave.

It supports the standard CANopen protocol DS301 V4.02.

It supports the NMT (network management object) service.

It supports the NMT state control.
The state of the AS series in the CANopen network is controlled by a master.

It supports the NMT error control.
The AS Series supports Heartbeat but not Node Guarding.

It supports the PDO (process data object) service.

The PDO message transmits the immediate input data and output data.

It supports up to 8 TxPDO and 8 RxPDO.

The PDO transmission type: synchronous mode and asynchronous mode

It supports the emergency service.
If an error or an alarm occurs in the AS series, the master is notified through the emergency service.

10.1.2 The Input/Output Mapping Areas

The following table lists the CANopen DS301 specifications for the AS series PLC.
Type Item
Maximum slave nodes
Master
Maximum transfer size of
a PDO (Read + Write)
Maximum transfer size of
Slave
a PDO (Read + Write)
C h a p t e r 1 0 C AN o p e n F u n c t i o n a n d O p e r a t i o n
Data type
Description
Up to 64 nodes
Up to 2000 Bytes (including some system configurations)
Up to 8 PDOs; each PDO with up to 8 bytes can be transferred
at a time
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