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DMODE <slot>[,<mode>][,<polarity>][,<EI>]
Establishes the handshake mode as well as polarity of the digital I/O bits
and control lines for the plug-in DIO modules. It is also used to enable/
disable the External Increment (EI) and Channel Closed (CC) pulse
functions for the 44474A DIO module.
The slot parameter is a decimal ranging from 0 to 9 (mainframe
dependent). Valid slot numbers are:
The mode parameter can take one of the values shown in the table below.
Complete descriptions of the handshake modes are given beginning on
page 86.
Handshake Mode
Static 1 (default) mode
Static 2 (read what was written) mode
R/W and Strobe mode
Read & Write Strobe mode
Handshake (no EI or CC) mode
Note
Only the ports including the first bit (i.e. Ports 00, 04, 06, etc.) on a
digital I/O model can be set to Mode #3, #4 or #5, and the three control
lines are valid for these ports. Other ports can be only in Static Mode #1
or #2, and the three control lines are invalid.
The polarity parameter sets the polarity of both the 16/32-bit data lines
and the handshake/control lines. When the polarity of the control lines is
changed by this command, the DIO modules will immediately change the
states of the affected lines. For the data lines, the current state is not
immediately changed, but the new polarity will be used in subsequent
operations.
3499A
slots 0 through 5
3499B
slots 0 through 2
3499C
slots 0 through 9
Chapter 5 Remote Interface Reference
3488 Mode Commands
Parameter Value
1
2
3
4
5
4
5
115
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