Solartron Mobrey 3595 4C, User Manual

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IMP Commands 3595 4C User Manual Part Two
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35952350 (CH01/AA)
HW
(Hardware Watchdog)
HW n
Where: n = 0, to disable the watchdog
n = 1, to enable the watchdog
Note: This command applies only to the Universal IMP (types 1H and 1J), and digital IMP type 2B.
Function: Enables or disables the hardware watchdog. Once the watchdog is enabled, the watchdog
output channel (channel 20 for UIMP or 32 for digital IMP) goes from a ‘0’ state to a ‘1’ (no
alarm) state. If a time-out period passes without the IMP being ‘patted’, the output is set to a
‘0’ (alarm) state. The IMP is reset into the power-up state. The watchdog can then be re-
enabled by sending the
HW1 command. Disabling causes the output to go into the ‘0’ state.
Once the watchdog is enabled, power-down forces the output into the ‘0’ (alarm) state. The
RE command does not disable the watchdog.
Response: None.
SF
(Status data Format)
SF n
Where: n = 0, for IEEE 754 floating-point format
n = 1, for binary compressed format
Note: This command applies only to the Switch IMP type 2B.
Functions: Command SF defines whether scan data is supplied as IEEE 754 floating-point numbers (128
bytes) in stream 0 or as a binary compressed quantity (9 bytes) in stream 3, for the single
trigger or continuous mode of operation. The default value is for IEEE 754 floating-point
format.
The binary format consists of:
Byte 1 ASCII character ‘%’ (37 decimal)
Bytes 2-5 Binary inputs from channels 1 to 32, starting from bit 7 of byte 2 to bit 0 of byte 5
for channels.
Bytes 6-9 Control bytes (one bit per channel). A bit value of ‘0’ indicates that the channel is
set to status input. A bit value of ‘1’ indicates the channel is ‘Not measured’ or
‘Unknown mode, type or range’.
Response: None.