3.17
IDN15 Telegram Type Parameter
The master uses IDN15 to select the contents of the AT and MDT cyclic data fields.
Selecting a pre-defined or standard telegram type completely defines the contents and
order of cyclic data within the AT and MDT. Within IDN15, the servo amplifier supports
values 1 through 7. Telegram type 7, or the application type telegram, allows the master
to define the contents and order of the AT and MDT cyclic data. The IDNs that may be
transferred as cyclic data within the AT and MDT are listed in IDN187 and IDN188
respectively. The maximum amount of AT and MDT cyclic data that the amplifier can
transfer is specified in IDN185 and IDN186 respectively. When the application telegram is
selected, the master writes the desired cyclic data IDNs for the AT into IDN16 and for the
MDT into IDN24.
The telegram type is saved in the lower byte of the bus parameter BUSP2. BUSP2 is an
Integer32 variable and contains other parameters (see ASCII documentation).
IDN15
Telegram
Telegram Cyclic Data
Value
Type
MDT (Commands)
AT (Feedback)
0
1
2
Standard telegram 2
Velocity (IDN36)
Velocity (IDN40)
3
Standard telegram 3
Velocity (IDN36)
Motor Position (IDN51)
11
External Position (IDN53)
4
Standard telegram 4
Position (IDN47)
Motor Position (IDN51)
12
External Position (IDN53)
5
Standard telegram 5
Pos/Vel (IDN47/36)
Motor Pos/Vel (IDN51/40)
13
External Pos/Vel (IDN53/40)
6
7
Application telegram
Contents defined in
IDN24
Contents defined in IDN16
Data Length: 2 bytes
Non-Volatile:
Yes
Data Type:
Binary
Write Access:
CP2
Minimum:
Run-Up Check:
CP2
Maximum:
Cyclic Transfer:
Default:
4
ASCII Param.:
BUSP2
3.18
IDN16 Configuration List of AT Cyclic Data
An IDN list of the AT’s cyclic data. The master fills this list with IDNs in CP2 selected from
a list of configurable AT data (IDN187) when an application telegram has been selected
through IDN15.
Data Length:
2 bytes elements, variable
length array
Non-Volatile:
No
Data Type:
IDN
Write Access:
CP2
Minimum:
Run-Up Check:
CP2
Maximum:
Cyclic Transfer:
Default:
Empty list
ASCII Param.:
sercos
®
for S300/S700
29
Kollmorgen
04/2016
sercos
®
IDN Set