GUILCOR AR006687, Instruction Manual, Page: 22 / 34

22
Function Unit
Address
[hex]
X
Address
[dec]
X
Description Status
Value
assigned to
output
Relay2
by
value
0x004A 74
0 ... Off
1 ... temperature
2 ... relative humidity
3 ... atmospheric pressure
4 ... computed value
5 ... binary input 1
6 ... binary input 2
7 ... binary input 3
8 ... Far condition 0
9 ... Far condition 1
R/W
When close
Relay2
[-] 0x004B 75
0 ... alarm occurs, when measured value is
LOWER than preset alarm value
1 ... alarm occurs, when measured value is
HIGHER than preset alarm value
R/W
Alarm value
for Relay2 by
value
0x004C 76 preset alarm value (threshold) R/W
Delay for
Relay2
[sec] 0x004D 77
Time in seconds Time in seconds that the
condition must be valid to evaluate alarm
R/W
Hysteresis of
Relay2 by
value
0x004E 78
Value which must be set back below / above
a given threshold in order to open the relay
R/W
Confirm
changes
[-] 0x004F 79
Read always as 0
write 1 ... physically stores new setup into
device’s memory, at the end the register is
automatically reset to zero.
R/W
All registers contains 16b number. Communication examples are listed in a separate document
entitled "Description of communication protocols“.
6.2. Protocol compatible with Advantech-ADAM standard
Control units communicate on master-slave principle in half-duplex operation. Only master can
send requests and only addressed device responds. During sending request any of slave devices should
respond. During communication data is transferred in ASCII format (in characters). Each Byte is sent
as two ASCII characters. Device supports communication speed from 1200Bd to 115200Bd,
parameters of communication link are 1 start bit + eight bit data word (LSB first) + 1 stop bit, without
parity.
6.2.1. Jumper
Jumper (placed nearby keys) is accessible after demounting of four screws in the corners of the
box and removing the lid. If communication protocol compatible with standard Advantech-ADAM
is selected, its function is the following:

If jumper during switching ON the power is closed, device always communicates with
following parameters regardless stored setting in the device:
communication speed 9600 Bd, without check sum, device address 00h

If jumper during switching ON the power is not closed, device communicates in accordance
with stored setting.