Lenze EMF2179IB - Manual (Page 61)

EMF2179IB communication module (DeviceNet)
Data transfer
5
5.6
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5.6-2 EDSDEN EN 02/2006
Depending on their time-critical behaviour, the telegram types are divided
into corresponding communication channels.
ƒ The process data channel transmits ”I/O data”
– By means of the I/O data you can control the controller.
– The host can directly access the I/O data. The data is directly stored
int the I/O area of the PLC.
– I/O data is not stored in the controller; they are cyclically transferred
between the host and the controllers (continuous exchange of input
and output data).
ƒ The parameter data channel transmits ”explicit messages”
– Enables access to all Lenze codes.
– Saving parameter changes:
Automatic storage for the 82XX and 8200 vector frequency inverters
Manually required storage for the 93XX servo inverters
(Lenze code C0003).

Note!
ƒ As default message type, ”Polled” is set in the communication
module.
ƒ The selection and configuration of the message types is
effected by means of software via the scanner.
Dividing the telegram types
into communication channels