SM 5100 SOFTWARE SETTING
4.3 RS232C Method
3. Cable Connection
3 Pins are used for data transmission between PC and SM-5100
9 Pin D-Sub Female Connectors for this cable:
PC Serial Port SM-5100 RS-232C
9 Pin D-Sub (Female) 9 Pin D-Sub (Female)
Pin Signal Signal Pin
1 N.C. N.C. 1
2 RXD RXD 2
3 TXD TXD 3
4 N.C. N.C. 4
5 GND GND 5
6 - 9 GND N.C. 6 - 9
4. Update Steps
1) How to start RS232C updating
A. Turn on the switch on the bottom of the scale.
B. Power off the scale by pressing the On/Off Key.
C. After that press and hold [Re-Zero] & [Preset 22], then start the scale by press
ing the On/Off Key.
D. It will display the version of the current boot program for two seconds.
E.
¾ If the scale boot version is newer than 1.10, it will display a updating method
choice like “1-RS232 2-ETHERNET” on the screen. you can press Numeric 1
to choose 1-RS232C.
¾ If the boot version is older than 1.10, the scale will not display the choice.
F. Then the Scale will display “PROGRAM”. You can’t stop it, unless you press
Tare or On/Off Key.
2) Start Mini Programmer
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