Cable Electronics DVP14 Dokumentacja Pobierz pdf (Strona 299)

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App6-30 Appendix 6 Universal Serial Communications

Global Port Number (FFH)

Active for connection mode (1 : n).

When the port number is set as [FFH] and a command is executed, all V series units that are

connected send a response in reply to a command from the host.

Commands for which global port number are active are shown below. If commands other than these

are used, a command error will occur.

Responses to global port numbers are not transmitted to the host. However, responses are written in

write area (n + 8) as shown below.

Signal Name Name Contents

WM Write Write data memory

WC Write CHR Write data memory as characters

Memory Contents Contents

0000H Global command not received

0100H ACK

Others Identical to NAK code (See page App6-41.)

1 2 ... 294 295 296 297 298 299 300 301 302 303 304 ... 331 332

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