User`s guide

Bulletin No. VVDED397053US Section 2 — Software Set-Up
November 2000 Interbus-S Protocol
© 2000 Schneider Electric All Rights Reserved
19
Supported Services
The PCP communication services supported by the card are as follows:
Initiate : Initializes the communication link.
Abort : Aborts the communication link.
Status : Provides status on the drive controller and
communication links.
Get-OV : Reads an object description.
Identify : Identifies the card.
Read : Reads a parameter.
Write : Writes a parameter.
A description of these services and data which the network master may
use is given in the list of communication links below.
Communication Link (KBL)
The Interbus-S card only supports one communication link between a
device (server) and the bus master.
Parameter Settings for an ATV58 Communication Link
A communication link defines the data which can be exchanged between
two devices by means of the services and transmission/reception buffers.
Both devices must know which services are supported and the length of
the buffers.
The structure of the Interbus-S card communication link is shown in
Table 8.
Table 8: ATV58 Communication Link Parameter Settings
Communication reference 2
Maximum length of buffer in transmission mode (low priority) 128
Maximum length of buffer in transmission mode (high priority) 0
Maximum length of buffer in reception mode (low priority) 128
Maximum length of buffer in reception mode (high priority) 0
Supported services (client) 00 00 00 (hex)
Supported services (server) 80 30 00 (hex)
Maximum number of parallel services 1
VVDED397053USBook Page 19 Tuesday, November 28, 2000 9:01 AM