Epson EM07ZS1647F manual Baud Rates Max. Cable Length, ItemProperty

4. Troubleshooting (PROFIBUS DP)

4.2.3.5 Network Configuration and Specifications

(1)Maximum Cable Length

Check that the cables used on the network meet the following specifications.

Baud Rates	Max. Cable Length
12 Mbps	100 m
6 Mbps	100 m
3 Mbps	100 m
1500 kbps	200 m
500 kbps	400 m
187.5 kbps	1000 m
93.75 kbps	1200 m
19.2 kbps	1200 m
9.6 kbps	1200 m

(2)Terminating Resistor

Ensure that two terminating resistors are connected to both ends of the network. The terminating resistor should be connected as shown below.

	VP (6)
	390 Ω
Data Line B	RxD/TxD-P (3)
	220 Ω
Data Line A	RxD/TxD-N (8)
	390 Ω
	DGND (5)

(3)Cable

The cables should meet the PROFIBUS specifications.

ItemProperty

Impedance	135 to 165 Ω
Capacity	< 30 pf/m
Loop resistance	110 Ω/km
Wire diameter	0.64 mm
Core cross-section	> 0.34mm2

Fieldbus I/O Rev.6 135