Vishay Micro-Measurements
System 7000 Programmer’s Reference Manual
Page 102 of 142
7 LOW-LEVEL COMMAND SET
Instrument commands (and queries) are implemented over the TCP protocol. The System 7000 listens for
commands over the specified TCP port.
Important Note:
All parameters in this specification, unless otherwise noted, are in little-endian (Intel) format.
7.1 Card and Channel Mask Notation
The System 7000 scanner has a control module, a power module, and 1 to 16 input cards.
Card Mask
In order to specify which cards are acted upon, all commands have a Card Mask field. The Card
Mask is configured as
15 14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit
16 15
14
13
12
11
10 9
8
7
6
5
4
3
2
1
Card
(1 = included, 0=excluded)
For example, a card mask of 0x1010 will cause the command to act on cards 4 and 12.
Note that for 4-slot scanners, all bits except 0 through 3 should be set to 0. If the card mask is not
used (or ignored) for a particular command, it should be set to 0x0000.
Channel Mask
In order to specify which channels (on a card) are acted upon, commands have a Channel Mask
argument. The Channel Mask is configured as
7
6 5 4 3 2 1 0 Bit
8
7 6 5 4 3 2 1 Channel
(1 = included, 0=excluded)
If the channel mask is not used (or ignored) for a particular command, it should be set to 0x00.
Programming Note: It is more efficient to set a card mask to include multiple cards than it is to
implement a loop that sends a command for only a single card at a time.
