AMX AXT-CA10 Instruction Manual page 36

Using the DXP-PRO Wizard
External Serial
Interface
CAM 1
FIG. 3 External serial interface usage
26
COM 1 Port 1
AXlink # 96
Screen 1
PROJ 1
COM 3 Port 1
AXlink # 98
Distance is so close - you could use same serial interface
It is first necessary to understand that the NI-700 is limited to direct communication via
2 available Serial ports. If more Serial devices are added to a project that requires direct
communication to a Master, the NI-700 option is then greyed-out from the list of
available choices during the final project build process (using the Finish button).
If the cable run distance from the COM port and the external Serial device is too far, it is
recommended that you assign a different COM port within the Use remote serial
interface drop-down list (as seen in the FIG. 3 with CAM1 and CAM2).
If the cable run distance from the serial interface and the external Serial device is close
enough, you can use both ports on the serial interface (as seen in FIG. 3 with Projector 1
and Projector 2).
These external Serial devices communicate via the external serial interfaces to an
AXB-232++ and are not directly communicating with a Master (NI-700); therefore, these
interfaces do not consume Serial communication ports on the Master. This device
configuration can function with an NI-700 when all of the Serial communications are
routed from the external serial interfaces through an AXB-232++ RS232/422/485.
The AXB-232++ provides a way to bridge the gap between an NI-700 (with no ICSNet
port) and the external serial interfaces, but when working with the RS232/422/485
device, the end-user must use the AXlink device IDs generated by DXP-PRO (as seen
below each COM port assignment).
This device ID information is saved along with the COM port assignments and if another
Master device is later chosen as the target Master, the COM port assignments will be
reflected within the project report and used by the project wizard.
COM 2 Port 2
AXlink # 97
Screen 2
PROJ 2
COM 3 Port 2
AXlink # 98
DXP-PRO v1.1 - Programmer's Guide
External Serial
Interface
CAM 2