Advanced Operations; Rs 232 Communication - Crison MultiMeter 44 Manual Del Usuario

Section 5
5.1

RS 232 communication

5.1.1 Connection
Figure 30 RS 232 connection with converting module code 44 99
White: To terminal RxD
1
Brown: To terminal TxD
2

Advanced operations

The RS 232 and the MP5 connection must be performed with the instrument always disconnect
to power.
MultiMeter 44 in all its versions has one RS 232 interface that can be used for:
Communication with a PC, "Send to PC": for "on-line" data sending with frequency
•
programmed in the Data Logger or Data Logger information extraction.
Messages sending through GSM to a mobile phone.
•
Data Logger information extraction for later data analysis. For this purpose "memory
•
module" is required. It connects directly to the external MP-5 connector.
External Hold. RS232 configuration for regulation blocking. Crossing the signal Rx
•
and Tx, the regulation through relays or 4-20 mA is inhibited.
The connection for data sending can be done in external connector MP-5 or to rear panel
The instrument only allows sending one data connection, or the connection to the connector strip
(rear panel) or the external MP-5
RS 232
Alarm
1 2 3 4
1 2 3
Black: To terminal GND
3
Cable with DB9 female connector
4
(included in code 44 99)
Code 44 99: Converting module RS 232 / USB for communication with PC. It includes
connection cable and software (see MM-485 software at
page 66).
Specification:
Baud rate: 9600. Word length: 8 bits. Stop bits: 1 bit. Parity: none
D A N G E R
N O T I C E
Relays Mains
Cleaning
N L
5 6 7 8 9 10
4 5
Fuse
110/230V: T100L 250V
24V: T500L 250V
Converting module code 44 99
5
5.2.3 Software MM-485,
57