443B101/443B102 39
Manual 19854 Rev. D
ECN 50523
Command: RDAR
Purpose: Reads the 8 bytes in the application register (or application register scratchpad
if unlocked) of the TEDS chip (DS2430).
Response: The module responds with an 8 byte string of hex data in ASCII format.
Command String: XYC0ZRDAR
Description: X—Rack number of the target module (Range: ASCII printable characters, 0
through 3)
Y— Slot number of the target module. (Range: ASCII printable characters, 0
through 7)
C0Z— Module type for the target. Specifying "C01" in this argument addresses
a 443B101, specifying “C02” addresses a 443B102.
RDAR— tells the module to read the 8 bytes in the application register (or
application register scratchpad if unlocked) of a TEDS device.
Response String: 8 bytes of hex data in ASCII format.
Example: Command String: “06C02RDAR”
Response String: “AABBCCDDEEFFAABB”
The 443B102 in rack 0 and slot 6 is commanded to read 8 bytes of hex data
from the application register of a TEDS device. The contents,
“AABBCCDDEEFFAABB” are returned.
Note: After receiving the RDAR or WRAR command, the 443B will be left in
TEDS mode and will not be able to power an ICP
®
sensor. This is because the
application register memory is non-volatile when not locked so that whatever
was written would be lost if the unit was returned to "analog" mode. This
feature allows the host to check the data in the application register before
locking it. The 'TOFF' command must be issued to return the unit to analog
mode.
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