Laurel Electronics Modbus Protocol For Series 2 Laureate Digital Panel Meters, Counters, Timers & DIN-Rail Transmitters - Manual (Page 16)

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Because the Counter/Timer can provide up to 3 display items during normal operation, it can
be used to provide additional features when used as a Remote Display. It is possible to send
Remote Data to Item 3 using addresses 006B,C or 006D,E. If the Counter/Timer is set up with
the "Source" menu item set to Item 3, it will make alarm comparisons to its Setpoints using the
Remote Data. Likewise, the Analog Output will respond to the Remote Data if "AnSEt" selects
Item 3 for the Analog Output source and the Display mode (Config Dig 3 = 7).
Address 0069,A sends Remote Data to the display only (any Display mode).
Address 006B,C sends Remote Data to Item 3 only for Alarms and/or Analog Out.
Address 006D,E sends Remote Data to both the display and Item 3.
11. DATA TYPES INTERNAL REGISTERS
S = Sign Bit, 0 = Positive, 1 = Negative.
DDD = Decimal Point XXXXXX. = 1 (Magnitude x 10^0)
XXXXX.X = 2 (Magnitude x 10^-1)
XXXX.XX = 3 (Magnitude x 10^-2)
XXX.XXX = 4 (Magnitude x 10^-3)
XX.XXXX = 5 (Magnitude x 10^-4)
X.XXXXX = 6 (Magnitude x 10^-5)
C = Bits of 2's Complement Binary Value
M = Bits of Positive Binary Magnitude
B = Bits of Configuration Data
For Modbus RTU, each data character consists of 8 bits (or 1 byte).
For Modbus ASCII, each data character consists of 4 bits (or 1 hexadecimal nibble).
Data characters are sent most significant first, lease significant last.
2C32 Two's Complement (4 bytes)
Hi Word (Register) Lo Word (Register) .
CCCC CCCC CCCC CCCC CCCC CCCC CCCC CCCC
M32 Binary Magnitude (4 bytes)
Hi Word (Register) Lo Word (Register) .
MMMM MMMM MMMM MMMM MMMM MMMM MMMM MMMM
M31 Sign + Binary Magnitude (4 bytes)
Hi Word (Register) Lo Word (Register) .
SMMM MMMM MMMM MMMM MMMM MMMM MMMM MMMM
M48 Binary Magnitude (6 bytes
Hi Word (Register) Mid Word (Register) Lo Word (Register) .
XXXX XXXX MMMM MMMM MMMM MMMM MMMM MMMM MMMM MMMM MMMM MMMM
Ignore XXXX XXXX - Use LS 5-byte result
Note: Meters and the
analog input transmitter
only have 5 digits and 5
decimal points.