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Technical data
7.2.1 Connection via the AME module
Connections
Protocol
Max. line length
Insulation level
Bus termination
Level
Max. number of modules
at the bus
Table 7-1
Technical data of the connection via the AME module
Pin
RS485 signal
1
Shield
2
3
A
4
RTS
5
GND1
6
VCC1
7
8
B
9
Table 7-2
Assignment of the bus connection at the device (D-SUB outlet)
7.2.2 Connection via the AMO module
Connections
Protocol
Max. line length
Optical budget
Status for "no signal"
Table 7-3
Technical data of the connection via the AMO module
8
For exclusive utilisation of AME modules at the bus.
This value could be smaller depending on the used Modbus master and further modules at the bus.
If more then 32 devices at the bus are needed, RS485 repeaters which support bit retiming have to be used.
7-2
9pole D-SUB outlet (ref. to Table 7-2)
semi-duplex
1000 m / 3300 ft
500 V
AC
Integrated, connectable terminating resistors
221 Ohm between A and B
392 Ohm between B and VCC1 as well as A and GND1
Input resistor not terminated ≥ 10 kOhm, then bus termination via bus plug with
integrated terminating resistors.
Transmitter:
Low: -5 V ≤ U
≤ -1.5 V
A-B
High: +5 V ≥ U
≥ +1.5 V
A-B
Receiver:
≤ -0.2 V
Low: U
A-B
≥ +0.2 V
High: U
A-B
Transmitter and receiver are surge-proof for voltages between A and GND1 as well as
B and GND1 in the range of –7 V...+12 V.
8
32
Shield / operational ground
-
RS485 connection pin A
Directions control RTS (TTL level)
Ground to VCC1
Supply voltage +5V DC (max. 100 mA, supply voltage for terminating resistors)
-
RS485 connection pin B
-
fibre-optical interface, Rx and Tx, 820 nm, BFOC/2.5
semi-duplex
•
2000 m / 1.25 miles for glass fibre 62.5/125 µm
•
approx. 2 m for plastic fibre
min. 8 dB for glass fibre 62.5/125 µm
light OFF
Meaning
7SJ61/62/63 6MD63 – Modbus
C53000-L1840-C001-01
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