Festo — CPX-F8DE-P — 2022-10d
System overview CPX-F8DE-P
27
Bytes 1 and 2 serve to select the function modes for all channel pairs and are set as a 16-bit wide word
by the F-host.
Bit pattern of the output data
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
0
1/0
1)
1/0
2)
1
8
4
2
1
8
4
2
1
Function mode for channel pair 7/6
Function mode for channel pair 5/4
2
8
4
2
1
8
4
2
1
Function mode for channel pair 3/2
Function mode for channel pair 1/0
1) Operating mode: 1 = channel-based passivation; 0 = module-based passivation
2) Operating mode: 1 = acknowledgment of a channel error
Tab. 15: Bit pattern of the output data (F-user data, bytes 0, 1 and 2)
•
Ensure that the data in the output image contain a valid module configuration for your safety
application.
Input data
The input module reflects the logical actual values back to the F-Host as an input image via byte 0
Tab. 16 Bit pattern of the input data (F user data, bytes 0 and 1).
Byte 1 receives qualification information corresponding to the input image.
Bit pattern of the input data: byte 0 and byte 1
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
E7
E5
E3
E1
E6
E4
E2
E0
Input image
1
Q7
Q5
Q3
Q1
Q6
Q4
Q2
Q0
Qualification bits
Qx = 1: signal Ex is valid
Qx = 0: signal Ex is invalid, incorrect input function in accordance with the function mode/
channel error/module error
Tab. 16: Bit pattern of the input data (F user data, bytes 0 and 1)
Byte 0 contains the logical status of the inputs in accordance with function mode. The input bits are
only set to 1 if the related qualification bit is also set to 1.
Byte 1 contains the qualification bits. The qualification bits only change to 1 if there is no channel
error, and if the channel was depassivated after a previous error in the channel.