Rockwell-automation 1746-HSCE2 Multi-Channel High Speed Counter Module Manual de usuario descargar pdf (Pagina 63)

Publication 1746-UM002B-EN-P - August 2004

Configuration and Programming 4-13

G/P Mode: Gate/Preset Mode Bits

(Words 1 and 3, Bits 04 to 06; Word 5, Bits 09 and 01)

Counters 3 and 4 have only two gate/preset modes available.

Therefore, they have only one G/P mode bit. When this single bit is

equal to zero, the No Preset mode is selected. When the bit is set, the

Soft Preset mode is selected. Three bits determine the Gate/Preset

Mode for Counters 1 and 2. The table below shows the G/P Mode

settings for counters 1 and 2.

Minimum/Maximum Count

Value Block

Figure 4.6 shows the format of the Minimum/Maximum Count Value

block. This programming block programs the minimum and maximum

counter value and preset value parameters of the selected counter. As

long as the min/max counter values are not changed from their

currently programmed values, the counter can be running when this

block is sent to the module. If the minimum/maximum values are

changed, the counter must be stopped when this block is sent or a

programming error is generated. The preset values can be changed

with the counter running.

Table 4.5 Gate/Preset Mode Programming Bit Settings for Counters 1 and 2

Bit 06 Bit 05 Bit 04 Gate/Preset Mode

0 0 0 No Preset

0 0 1 Soft Preset Only

0 1 0 RESERVED

0 1 1 RESERVED

1 0 0 Store/Continue/Soft Preset

1 0 1 Store/Hold/Resume/Soft Preset

1 1 0 Store/Preset/Hold/Resume/Soft Preset

1 1 1 Store/Preset/Start/Soft Preset

TIP

All configurations and modes are not available to all

counters. See the Summary of Available Counter

Configurations on page 2-8.

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 139 140

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Rockwell-automation 1746-HSCE2 Multi-Channel High Speed Counter Module Manual de usuario Pagina 63