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Manual
ibaLink-VME
16
Issue 1.8
7.2
Operation modes
The S1 “Mode” switch specifies the operation mode, especially the used ibaNet protocol,
the telegram size and the timebase.
Depending on the operation mode several devices can be cascaded or coupled in peer-
to-peer mode. The X20 TX output at channel 2 can be used as independent output chan-
nel, or it can be used for diagnostics when the data of channel 1 is mirrored to this output.
S1 Mode
switch
ibaNet
protocol
Size
Time
base
X10 TX
X20 TX S3 Addr
switch
S2 Range
switch
0
3Mbit
64A+64D
1 ms
RX+VME1 VME2
1..8
1..8
1
3Mbit
64A+64D
1 ms
RX+VME1 =TX1
1..8
1..8
8
3Mbit P2P
64A+64D
1 ms
VME1
VME2
-
-
9
3Mbit P2P
64A+64D
1 ms
VME1
=TX1
-
-
4
32Mbit P2P
4024 Bytes
50 µs ..
1.4 ms
VME1
=TX1
-
0..15
F
32Mbit Flex
65 Bytes ..
4060 Bytes
25 µs ..
1.4 ms
RX+VME1 =TX1
1..15
-
green:
compatible with ibaLink-SM-128V-i-2o
yellow:
default setting
VME1:
Data from VMEbus interface for channel 1
VME2:
Data from VMEbus interface for channel 2
RX:
received fiber optic data from channel 1 (cascading)
=TX1:
copy of X10 TX (can be used as diagnostics output)
7.2.1
ibaNet 3Mbit (mode 0)
Channel 1 receives and transmits 64 analog and 64 digital input and output signals at
1 ms rate. This mode allows cascading of up to 8 devices. The S2 Range switch specifies
the range of channels within a cascade to be transmitted over the fiber-optic link. Valid
settings are 1…8 (valid for each 8 digital and 8 analog measured values). Up to 8 x (8
8 digital signals) can be transmitted in a cascade. The switch should be set to
8, when cascading is not used.
The S3 Address switch defines the starting position of the local data in the daisy-chain
(1…8). See also chapter 7.1.2 “Rotary switch S3 Address” and chapter 9.3 “Cascade