Parker ACR8020, Руководство по оборудованию

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Chapter 2, ACR8020 Motherboard Hardware Set-Up 11
ACR8020 MOTHERBOARD SWITCHES
Serial Communication Card Selection / User Switch (SW1)
Serial communications via the COM1 and COM2 communication ports on the optional
ACRCOMM module are performed with multiple cards using different ACR8020 card
numbers. The following table shows how the switch positions 1 through 4 relate to the
ACR8020 card number.
Dip switch positions 5 through 8 are used as dedicated user switch inputs. This portion of
the switch is available to the user as part of the Miscellaneous Input Flags (bits 68 thru
71). Refer to Appendix B, Flag References.
Refer to Figure 1 for switch location.
Note that Switch 4 should be left in the “OFF” position, unless using the Flash Bypass
Mode of operation. Flash Bypass Mode is selected when the user does not want to load
the program information from flash at power-up or reset. Serial communications via the
COM1 and COM2 communication ports on the ACRCOMM module will recognize the
card as Card Number 15. However, the card should be placed back to a valid card
number during normal operation.
Refer to Figure 1 for switch location.
Card SW1 Settings
Number 4 3 2 1 Function
0 OFF OFF OFF OFF Serial Communications
1 OFF OFF OFF ON Serial Communications
2 OFF OFF ON OFF Serial Communications
3 OFF OFF ON ON Serial Communications
4 OFF ON OFF OFF Serial Communications
5 OFF ON OFF ON Serial Communications
6 OFF ON ON OFF Serial Communications
7 OFF ON ON ON Serial Communications
8-14 RESERVED
15 ON ON ON ON Flash Bypass Mode
Table 2.1 ACR8020 Serial Communication Card Number Select