- Product name：EM277 PROFBUS-DP interface module
- Distributed I/O system with PROFBUS-DP interface
- Photoelectric isolation, stable performance
- Support S7-200 series PLC (such as CPU)
- Support for 300CPU with DP master function
- RS-485 communication baud rate from 9.6Kbs to 12Mbs adaptive
- Maximum support for connecting 99 DP slave stations
technical parameter
|
Voltage range |
20.4-28.8V DC |
|
Maximum current consumption（24VDC） |
70mA |
|
Number of communication ports |
1 RS485 ports |
|
Connection protocol |
PROFIBUS-DP |
|
Station address setting |
0 to 99 (set by knob switch) |
|
Maximum number of stations per segment |
32 |
|
Maximum number of stations per network |
126, up to 99 EM277 stations |
|
PROFIBUS-DP communication rate |
9.6, 19.2, 45.45, 93.75, 187.5 and 500K baud rate; 1.5, 3, 6 and 12M baud rate |
|
Cable length |
|
|
Below 93.75Kbps |
1200m |
|
187.5Kbps |
1000m |
|
500Kbps |
400m |
|
1-1.5Mbps |
200m |
|
3-12Mbps |
100m |
|
Dimensions (L * w * h) |
71*80*62 |
Structure diagram
|
EM277 module LED indicator light |
||||
|
LED |
OFF |
gules |
Flashing red light |
green light |
|
CPUfault |
Good module |
Internal module failure |
/ |
|
|
POWER |
No 24VDC user power |
/ |
/ |
|
|
DP ERRO |
No wrong |
Data exchange mode |
Parametric / configuration error |
24VDC user power good |
|
DX MODE |
Data exchange mode |
/ |
/ |
Data exchange mode |
