Sap Programming; Digi And Digo Axis Qualifiers; Axis Qualifiers Ain0; Hardware - Addi-Data APCI-8001 Option Manual

O
PTIONS MANUAL
1.2.3

SAP programming

1.2.3.1

digi and digo axis qualifiers

For the functionality of the digi and digo axis qualifiers for PCAP commands rddigi() and rddigo(), see
sections [1.2.2.2] and [1.2.2.4] respectively.
1.2.3.2 Axis qualifiers ain0 .. ain3
Axis qualifiers ain0 to ain3 are used to read in the analog input channels. The axis qualifiers are assigned to
axis channels 1 and 2. This means that up to 8 analog inputs can be processed. The input information is
returned as integer type.
OPMF of the APCI-8001: The value range is specified as values from -2048 to +2047, based on the AD
converter 12-bit word width, including signs. The voltage level for this measurement value depends on the
input voltage range of the respective A/D channel. This is usually -5 to +5 V. However, measurement ranges
from -10 to +10 V, 0 to 5 V or 0 to 10 V can also be processed. Each input channel can be set individually to
one of the above-mentioned measurement ranges. If only 4 input channels are fitted, these are accessed
under the 4 channels of the first axis. For this, inputs AIN1 to AIN4 are wired.
OPMF of the APCI-8001: The value range is specified as values from -32768 to +32767, based on the AD
converter 16-bit word width, including signs. The voltage level for this measurement value depends on the
input voltage range of the respective A/D channel. This is usually -10 to +10 V. However, measurement
ranges from -5 to +5 V can also be processed. All input channels can be set only together to one of the
above-mentioned measurement ranges. If only 4 input channels are fitted, these are accessed under the 2
channels each of the first two axes. For this, inputs AIN1, AIN2, AIN5 and AIN6 are wired.

1.3 Hardware

The OPMF options print is designed as a daughter board for the APCI-8001 / APCI-8008 motherboard. Both
modules are assembled in the factory with plug and screwed connections. The control system requires one
or two PC slots for mechanical reasons, depending on the configuration, but electrically only one PCI slot is
required.
Depending on the level of configuration, the peripheral electronics are connected to the OPMF via a 50-pin
SUB-D connector (X1) and a 60-pin SUB-D connector (X2). There is a cable loom with a board holder and
integrated 50-pin SUB-D connector for the 60-pin FB connector X2 of the OPMF. This board holder can be
installed in a free PC slot adjacent to the control system. In the maximum configuration (8 axes), up to three
50-pin SUB-D connectors can be used.
All the following pin descriptions refer to these 50-pin SUB-D connectors.
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