Overview:
The DE-1500 includes a RS-232 / RS-485 feature that allows a remote user to
"emulate" the keypad and receive the contents of the display.
Remote Keypad Emulation:
Query:
>(01 KP 0)
01 = node number, KP = keypress function, 0 is the single ASCII
"Key Press" from the table below.
"Key Press" Table
0 = NONE ( no keypress, returns
current display )
C = CANCEL TIMERS
T = TEST
R = RESET
S = STOP
P = VIEW
N = NEXT
U = UP/UNITS
V = VIEW CHAN
1 = F1
A = RIGHT/TENS
X = ENTER
L = LEFT/TENS
2 = F2
M = MENU
D = DOWN/UNITS
E = ESC
Response:
CR LF (20bytes 1st line of display) CR LF (20 bytes 2nd line)
CR LF (20bytes 3rd line) CR LF (20bytes 4th line) CR LF
CR = Carriage Return, LF = Linefeed, 4 20 byte ASCII blocks that
is the display. The total number of returned characters is 90.
MODBUS REGISTERS
