Siemens SIMATIC 505 3.1 Controller Input Words

Programming
3-2
Series 505 High Speed Counter
and Encoder Module User ’ s Manual
3.1 Controller Input Words
The HSC module is configured as three word inputs (WX) and five word
outputs (WY). It occupies eight words of the controller ’ s word image
register.
3.1.1
WX1 (Status W ord) W ord 1 (WX) is the module’ s status word. Eight bits provide the status of
each of the two channels. Figure 3-1 shows the format of the status word.
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
Reserved and will be returned as zeros
CH 1 — INHIBIT ST ATUS (1 = Count inhibited)
CH 1 — RESET ST ATUS
CH 1 — OUTPUT 1 ST ATUS
(1 = Counter reset)
(1 = On)
CH 1 — OUTPUT 2 ST ATUS
CH 2 — INHIBIT ST ATUS
(1 = On)
(1 = Counts inhibited)
CH 2 — RESET ST ATUS (1 = Counter reset)
CH 2 — OUTPUT 1 ST ATUS (1 = On)
CH 2 — OUTPUT 2 ST ATUS (1 = On)
BIT
MSB
LSB
Figure 3-1 Status W or d For mat
  Each channel has a Reset Status bit in the status word. If
the channel’ s RESET field input is active, this bit will be 1; otherwise this
bit will be 0.
 The Reset Command bit (see Setup W or d, Section 3.1.3) does not
af fect the r eset status bit.