63
= Key1
= Key 2
= Key 3
= Max. value or consumption = Min. value or supply
CONF
W
0
CONF
CONF
CONF
Principle diagram , digital inputs
Input channel
Diagr. Principle diagram digital inputs
UMG505
Digital Inputs
EMAX target
number
Synchronize
internal clock
EMAX
measuring period
reset
EMAX target num-
ber
Synchronize
internal clock
Activate energy
meter
Activate energy
meter
Input
channel 0
Input
channel
15
28
29
30
2
1
RS485
RS232
A / TXD
B / RXD
GND
Input 13-20
Input 5-12
Index 53
Bit 8 - 15
Addr. 30
hex
Bit 0 - 7
7
6
Digital
Input 4
ZMM 3V9
1,5 k
4k
5
4
3
Digital
Input 3
Digital
Input 2
17
16
Digital
Input 1
Event
counter/
memory
5,1 k
5,1 k
Input 1-4
AND
Input 1-4
Meas. value
Psum
Pulse
valence
EMAX measuring
period reset
Event
counter/
memory
Event
counter/
memory
Event
counter/
memory