Programming Guide

CHUMP Commands
17
Parameter Descriptions
The parameters that may be sent with the CHUMP commands are
as follows:
a: <address, offset, or location>
– Read or Write fields - start address
b: <HEX block data value or string>
– R/W fields - data (nn HEX data, "abc" ASCII data)
– Feedback field - text (b:"abc" ASCII data)
f:
– Operation specific low level flags
d: <tag id>
– Tag identification number
l:
– Length, weight, amount, time
t:
– Tag type (manufacturer, protocol). For example, ICP is ICode
by Philips. See Chapter 3 - Reader Configuration, for more
information on Protocl Select Words (PSW).
Additional parameters that may be received with CHUMP replies
include the following:
c:<temp>
– First character is the sign ( + or - )
– Second and third are temperature in decimal
e: <error number>
– Error. Can be included in any message reply to indicate
problems with the current or a previous message.