www.janitza.com UMG 96-S2
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7. 5 Current measurement 24
7. 5. 1 Current measurement connection versions 25
7. 5. 2 Summation current measurement 26
7. 5. 3 Ammeter 26
8. Connection 27
8. 1 Connection to a PC 27
8. 2 RS485 interface (serial interface) 27
8. 3 Shielding 28
8. 4 Termination resistors 28
8. 5 Bus structure 29
9. Communication via the RS485 interface with the
Modbus RTU protocol 30
10. Digital output 31
10. 1 Pulse output function 31
10. 2 Pulse output connection example 31
10. 3 Pulse value (parameter address 102) 31
10. 4 Pulse length (parameter address 106) and pulse pause 32
10. 5 Determining the pulse value 32
11. Operation and button functions 33
11. 1 Operation 33
11. 2 Button functions 34
11. 3 Parameter (addresses) and measured value display 35
11. 3. 1 Parameter (addresses) 35
11. 3. 2 “Parameter address” example display 35
11. 3. 3 Measured value display 35
11. 3. 4 Example of measured value display 35
12. Configuration 36
12. 1 Connecting the supply voltage 36
12. 2 Programming mode 36
12. 3 Password protection 36
12. 4 Current transformer and voltage transformer 36
12. 5 Programming the current transformer 37
12. 6 Programming the voltage transformer 37
12. 7 Programming the parameters 38
12. 7. 1 Setting the device address (parameter address 000) 38
12. 7. 2 Setting the baud rate (parameter address 001) 38
12. 7. 3 Mean values and averaging times (parameter address 040, 041 and 042) 38
12. 7. 4 Deleting min. and max. values (parameter address 506) 39
12. 7. 5 Measured value display, automatic display change and changeover time
(parameter address 037, 038, 039) 39
12. 7. 6 User password (parameter address 050) 39
12. 7. 7 Deleting the energy counter (parameter address 507) 40
12. 7. 8 LCD contrast (parameter address 035) 40
12. 7. 9 Serial number (parameter address 911) 40
12. 7. 10 Software release (parameter address 913) 40
12. 8 Important information for configuration 40
12. 8. 1 Energy counter 40
12. 8. 2 Reading the active energy 40
12. 8. 3 Harmonics and harmonics content 40
12. 8. 4 Phase sequence 41
12. 8. 5 Operating hours counter 41