Communication Between The Cpu And The Ip 266 - Siemens SIMATIC S5 Manual

IP 266
Table 7-3. Overview of the Output Frame
Byte
0
1 Bit 7 Bit 6
TOGGLE 0
2 Byte parameter for various modes
3 Override factor
4 Binary-coded:
5 16-bit fixed-point number with sign (bit 7 in byte 4) for forwarding the
integer digits in the value to the IP 266.
BCD:
byte 4, bits 4 to 7: sign of the BCD number
byte 4, bits 0 to 3 and
byte 5, bits 0 to 7: 3 BCD digits
6 Binary:
7 16-bit binary number for forwarding the decimal digits to the IP 266.
BCD:
byte 6, bits 4 to 7: least-significant integer
byte 6, bits 0 to 3 and
byte 7, bits 0 to 7: three decimal digits in the BCD number
EWA 4NEB 812 6057-02

Communication Between the CPU and the IP 266

Description
Mode codes
Bit 5 Bit 4 Bit 3
0 TRANS REV
Recommen-
Bit 2 Bit 1 Bit 0
FWD STOP START
ded data
format
KF
KM
KM/KF
KF
KF
KH
KF
KH
7-3