Ak Interfaces; Analog Input And Output Signals Configuration - TESTO CU-2 User Manual

6 testo NanoMet Operation
Fig. 6.6: calibration factors settings window
To use the standard calibration, simply the two calibration factors determined for both testo
MD19-3E diluter disks must be entered in the specific field. There is no need for testo ASET15-1
calibration figures because in terms of its calibration this device has been adjusted to meet
exactly its nominal dilution factors.
6.3.3.

AK Interfaces

An AK host computer may either connect to the testo CU-2 Digital Control Unit via serial
connection or via TCP/IP using one of the two LAN connectors of the device.
If a serial connection should be used, COM4 is set by default. This port is equipped with a female
connector while COM1...COM3 have male connectors. This is done because in this case testo
CU-2 is connected to the AK server as a slave while the other COM ports are used to connect
other slave devices to testo CU-2 Digital Control Unit as master.
Another AK host may connect to testo CU-2, but this one can only execute AK 'A' (read)
commands because only one instance may control the system and therewith execute 'S' (control)
and 'E' (write) commands.
The detail parameters of the connection to the AK host can be set in the 'AK interfaces' section of
the 'Config System' tab.
6.4.

Analog Input and Output Signals Configuration

On the 'Config AI/AO' tab shown in Fig. 6.7 the 5 analog inputs can be specified and the
functions of the 4 analog outputs can be selected out of the referring menus. Besides it is set if
one digital output signals should be used for all errors or if the two available signals should
indicate CPC and dilution system errors separately.
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