Neets 4 Relay box, Manual

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Page 11 306-0008-002-001 Rev500 Neets 4 relay
RS-232 protocol
It is possible to control the relay box from a control system or a computer that is equipped with an RS-232
port.
Communication condition
The serial port on the device that controls the relay box must match the following:
Description Settings
Baud rate 9600
Data length 8 bit
Parity bit None
Stop bit 1 bit
Flow control None
Commands
When entering all the commands in the Neets Control Utility software, select “Chr” as input format.
To easier understand the commands below please keep this in mind.
Please be aware that all the RS-232 commands are case sensitive. If the relay box detects an error in the
command line, the entire command will be ignored.
Sending multiple commands is possible without time delay between commands. Just remember that each
command must end with \CR.
To do this in the Neets Configurations Utility please look below:
We want to send two commands:
Relay=1,Action=Set\CR
and
Relay=2,Action=Release\CR
Symbol Description
<X> When constructing the command, this part must be replaced with a sting or number.
[ ] The braces indicate that what is inside only have to be included in the command the
function is required.
In the command, the braces are not included.
\CR Every command line must end with a carriage return.
Carriage return is commonly referred to as “CR” or if you need to enter it in hex the value
is 0D and in decimal it is 13.