4243DV2 EM-9422-B Rev.3
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
9. HOLDING DISPLAY
Displayed value is held with an external HOLD command input. Connect the contact across HOLD to COM as shown in
the following gures. Close the contact to hold the value.
■ WIRING EXAMPLES
NOTE
• While the HOLD command is input, the display keeps the value at the HOLD command turning on, even though the
input is out of range.
• In supplying power with the HOLD command on, 0 is indicated.
L
HOLD
H
3
Twisted pair cable
L
HOLD
H
L
HOLD
H
L
HOLD
H
Twisted pair cable
Twisted pair cable
COM
3
4
COM
(b)
Transistor
(a)
5V–CMOS, TTL
(c)
Photo-Coupler
(d)
Relay
Relay
Photo-Coupler
HOLD
4
HOLD
3
Twisted pair cable
COM
4
HOLD
3
4
COM
HOLD
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