Dewetron DEWE-ORION-1616-10 Series, Техническое справочное руководство

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Page 28
DEWE-ORION-1616-10x
2.5.4 Counter and DI/O DEWE-ORION-1616-102/103
The number of counters and digital inputs can be expanded with the counter expansion add-on board. All
the baseboard functionality stays the same like in the standard configuration. Similar to the counter inputs of
DEWE-ORION-1616-100/101, the input pins can also share the function for digital inputs or counter inputs.
Please also refer to the pin-out description in chapter 2.3.1. The block diagram (figure 6) indicates that eight
counter channels and theoretically 16 digital inputs can be transferred at once. If higher digital input count is
used the counter no. 7 is switched off.
Source Ex_CNT0 ~ 1
Gate Ex_CNT0 ~ 1
Aux Ex_CNT0 ~ 1
Source Ex_CNT2 ~ 3
Gate Ex_CNT2 ~ 3
Aux Ex_CNT2~ 3
Source Ex_CNT4 ~ 5
Gate Ex_CNT4 ~ 5
Aux Ex_CNT4~ 5
Source Ex_CNT6 ~ 7
Gate Ex_CNT6 ~ 7
Aux Ex_CNT6~ 7
Filter Counter 0
Counter 1
Counter out 0
Counter out 1
Decoder
Decoder
Filter
Filter Counter 2
Counter 3
Counter out 2
Counter out 3
Decoder
Decoder
Filter
Filter Counter 4
Counter 5
Counter out 4
Counter out 5
Decoder
Decoder
Filter
Internal time
base sample
clock
Filter Counter 6
Counter 7
Counter out 6
Decoder
80 MHz or
sample clock
80 MHz or
sample clock
Decoder
Filter
Ex_DI 0 to 31
Ex_Out 0
Prog. Divider
Ex_Out 1 Prog. Divider
Filter
DI
DI 0
DI 31
DI
DI 0
DI 15
Counter out 7 or
DI 0 to DI 31
DI 0 to DI 15
Figure 6: Counter and digital input organization
The counter input selection table below shows the input routing possibilities.
Source input Gate input AUX input
Source Ex_CNT(n) Gate Ex_CNT(n) Aux Ex_CNT(n)
Source from pair counter Gate from pair counter AUX form pair counter
Gate Ex_CNT(n) Source Ex_CNT(n) Source Ex_CNT(n)
Gate from pair counter Source from pair counter Source from pair counter
Aux Ex_CNT(n) Aux Ex_CNT(n) Gate Ex_CNT(n)
AUX form pair counter AUX form pair counter Gate from pair counter
ADC Clock ADC Clock ADC Clock
40 MHz testsignal
There are two output channels available. Each channel can be connected to two input signals via multiplexer
(80 Mhz or sample clock). After the input selection, the signal passes the programmable divider, where high
time and low time of the signal can be varied. The output channels are activated if the ORION-EXP-CNT8-
TTL is in data acquisition mode. Otherwise the output channels are inactive.