![background image](http://html1.mh-extra.com/html/eaton/elc-pb/elc-pb_programming-manual_4017452294.webp)
3 . I n s t r u c t i o n S e t
M N050 03003E F or mo re infor ma tio n vi sit:
w w w. e a t o n . c o m
3-125
Counter
type
Program-interruption
high speed counter
Hardware high speed counter
1-phase 1 input
1-phase 1 input
1-phase 2 inputs
2-phase 2 inputs
Type
Input
C235 C236 C237 C238 C239 C240 C241 C242 C243 C244 C246 C247 C248 C249 C251 C252 C253 C254
X0
U/D
U/D
U
A
X1
U/D
D
B
X2
U/D
R
R
R
X3
U/D
S
S
S
X4
U/D
U/D
U
A
X5
U/D
D
B
X6
R
R
R
X7
S
S
S
X10
U/D
U
A
X11
D
B
X12
R
R
R
X13
S
S
S
X14
U/D
U A
X15
D B
X16
R
R R
X17
S
S S
U: Progressively increasing input
A: A phase input
S: Input started
B: Progressively decreasing input
B: B phase input
R: Input cleared
c) In the ELC-PV series, there is no limit on the number of times the hardware high speed
counter related instructions, DHSCS, DHSCR and DHSZ can be used. However, when
these instructions are enabled at the same time, there will be some limitations. DHSCS
instruction will occupy 1 group of settings, DHSCR 1 group of settings and DHSZ 2
groups of settings. These three instructions cannot occupy 8 groups of settings in total;
otherwise the system will ignore the instructions which are not the first scanned and
enabled.
d) System structure of the hardware high speed counters:
i) HHSC0 ~ 3 have reset signals and start signals from external inputs. M1272,
M1274, M1276 and M1278 are reset signals for HHSC0, HHSC1, HHSC2 and
HHSC3. M1273, M1275, M1277 and M1279 are start signals for HHSC0, HHSC1,
HHSC2 and HHSC3.
ii) If the external control signal inputs of R and S are not in use, you can set
M1264/M1266/M1268/M1270 and M1265/M1267/M1269/M1271 as True and
disable the input signals. The corresponding external inputs can be used again as
general input points (see the figure below).
iii) When special M is used as a high speed counter, the inputs controlled by START
and RESET will be affected by the scan time.
Содержание ELC-PB
Страница 1: ......
Страница 5: ...For more information visit www eaton com MN05003003E iv...
Страница 29: ...ELC Programming Manual For more information visit www eaton com MN05003003E 1 24 MEMO...
Страница 502: ...3 Instruction Set MN05003003E For more information visit www eaton com 3 333...
Страница 601: ...ELC Programming Manual For more information visit www eaton com MN05003003E 3 432...
Страница 625: ...ELC Programming Manual For more information visit www eaton com MN05003003E 3 456...