HP Advanced Communications Controllers (ACC) Response code for message type 2 and 10 Format, Lpr

ZCOM Tables and Data Structures

Message Header

MSRESP- Response code

The response code is used in two ways. Firstly, for message types 2, 4, 10, and 12 (send message), it indicates the type of response expected when this message is sent or delivered. Secondly, for other message types, it is the status of the completed message.

		Response code for message type 2 and 10 are shown in Table 3-36.
Table 3-36		Response code for message type 2 and 10 Format
7	6		5		4	3	2	1	0
LPR	XPS					PGW	BFR	DEF	ERR
		ERR		Response if error exists
		DEF		Definite response (error or no error)
		BFR		Return status and message buffer as response (for data
				message only)
		PGW		Program is waiting for response
		XPS		Express transmit message
		LPR		Low priority transmit message

Response code for all other message types are shown in Table 3-37.

Table 3-37 Response code for all other message types

7

6 5 4 3 2 1 0

ZCOM error code or 0

MZDEST - Destination ZCOM address

This is the ZCOM address to which the message is to be sent.

MZSRCE - Source ZCOM address

This is the ZCOM address of the sender of the message. This field is returned in the message header with the zread routine. When a message is received from a terminal, the sender zaddr.zlu is the ZLU number of the terminal.

Chapter 3 115