Laurel Electronics LAUREATE SERIES Serial Comunications - Manual (Page 17)

aa is the most significant address in nonvolatile memory of the words
to be read or written
is n words of 2 bytes or 4 hex characters per word in order from
the most to the least significant address
The coded number of words n consists of a single character representing values from 1
to 30 as shown under CHARACTER 4.
The most significant address aa consists of 2 hex characters as shown under NON-
VOLATILE MEMORY ADDRESSES.
5.4 REMOTE DISPLAY COMMAND FORMAT
5.4.1. DPM
DATA FORMAT
* 1HSDDDDD.A S = Sign, either blank (for +) or -
D = Digit from 0 to 9, five digits total. Always include a
decimal point even though it comes at the end.
A = Alarm character as defined in 3.2.
REMOTE DISPLAY
A DPM may serve as a remote display that responds to values sent by a PC
Controller (E.G. an IBM PC/XT/AT personal computer) with serial communications
or to another DPM in a Master/Slave configuration. There are 3 modes in which the
DPM may act as a remote display.
MODE 1
DPM with Signal Conditioner card and not in Remote Display mode.
SETUP (left digit) = 0 4 1/2 Digit DPM
= 2 4 1/2 Digit DPM with Count by 10
= 3 3 1/2 Digit DPM
The baud rate must be set the same as the source. The PC Controller uses the H
command to cause the display to halt it’s normal readings and display the value sent
by Serial Communications instead. The DPM must be in the Command mode to
receive the data. The data format sent via Serial Communications is:
* #HSDDDDD.A where the decimal point is in front, behind (as shown),
or between the D’s (digits).
An exact total of 11 characters plus a CR must be included and sent as ASCII
characters. Those in quotes below are included as shown. The other symbols
represent a range of characters except for CR which is the ASCII character “0D”.
* = Command identifier
# = Device address from 1 to 9, A to V, or 0 for common address
H = Command letter
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