Festo CPX-FB13 - Page 154

B. General DP master
B−12
Festo P.BE−CPX−FB13−EN en 0811c
Over view of the work data (Data_Exchange) for the example
terminal 3 (CPX terminal with CP interface):
Output data (Outp_Data)
Input data (Inp_Data)
Octet 1: O−data byte_0
*)
(4DO module, mod. no. 2, 8DO)
Bit 0: Output x.0
...
Bit 7: Output x.7
Octet 2: O−data byte_1
(CP interface 4 bytes I/16 bytes O,
mod. no.3, CPV valve terminal on string 1)
Bit 0: Output y.0
...
Bit 7: Output y.7
Octet 3: O−data byte_2
(CP interface continued, CPV valve
terminal on string 1)
Bit 0: Output (y+1).0
...
Bit 7: Output (y+1).7
Octet 4: O−data byte_3
(CP interface cont., assigned but unused)
Bit 0: Output (y+2).0
...
Bit 7: Output (y+2).7
...
Octet 14: O−data byte_13
(CP interface continued, output module on
string 4)
Bit 0: Output (y+12).0
...
Bit 7: Output (y+12).7
Octet 1: I−data byte_0
(Status bits CPX−FB13, mod. no. 0)
Bit 0: Diagnostic message
... (see section 3.3)
Bit 7: Diagnostic message
Octet 2: I−data byte_1
(8DI module, mod. no. 1, 8DI)
Bit 0: Input u.0
...
Bit 7: Input u.7
Octet 3: I−data byte_2
(CP interface 4 bytes I/16 bytes O,
mod. no.3, input module on string 1)
Bit
0: Input v.0
...
Bit 7: Input v.7
Octet 4: I−data byte_3
(CP interface continued, input module on
string 1)
Bit 0: Input (v+1).0
...
Bit 7: Input (v+1).7
Octet 5: I−data byte_4
(CP interface continued, assigned but
unused)
Bit 0: Input (v+2).0
...
Bit 7: Input (v+2).7
*)
Only the first 4 bits in this byte are used. x, y, u, v = address offset of master module
Tab.B/6: Cyclical data exchange for example terminal 3 (see Fig.2/11)  part 1