Parker ACR2000, Hardware Manual

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ACR2000 Hardware Manual
P/N PM08117
26
ACRCOMM SERIAL COMMUNICATIONS, continued
The following tables show the configuration schemes for the ACR2000 board with the
serial communication ACRCOMM module option. Refer to the User’s Guide manual,
COM1/COM2 Stream Flags, Appendix B, for bit flag details.
MUX Flags, Set-up communication type flags:
MUX1 FLAG MUX0 FLAG COMM FUNCTION
CLR (0) CLR (0) Not Used
CLR (0) SET (1) RS-232 (Default)
SET (1) CLR (0) RS-422
SET (1) SET (1) Not Used
RECEIVE/TRANSMIT Flags, RS-422 flow control flags:
RECEIVE
FLAG
TRANSMIT
FLAG
COMM FUNCTION
CLR (0) CLR (0) Not Used (Default)
CLR (0) SET (1) Use for RS-422 Operation:
Full Duplex
Receiver Enabled
Transmitter Enabled
CLR (0) CLR (0) Not Used
CLR (0) SET (1) Not Used
SET (1) Don’t Care Not Used
Figure 4. ACRCOMM RS-422 Interface Schematic