Rockwell-automation 1771-N SERIES High Resolution Analog Module User M Manuale Utente Scaricare il pdf (Pagina 100)

Block Transfer Write and Block Transfer Read Configurations for 8 Output/0 Input 1771-N Series ModulesC–4

Publication 1771ĆUM127B-EN-P - December 2002

DefinitionBitWord

Bit 00

Verify. If this bit is set to 1, the module will compare its current

programming with the programming downloaded in the BTW. If

they are the same, it will verify good; if they are different, the

module will verify bad. In no case will any programming data in

the BTW be applied to the module.

Word 9

Bit 01

Temperature scale. 0 = Celsius, 1 = Fahrenheit

Bit 02

BCD select. 1 = all values in BCD format. All values are then

entered in the selected format. If the field is a signed field, the

most significant digit represents the sign.

Bits 03-15

(03-17)

Not used. Always 0.

Word 10

Bits 00-15

(00-17)

Real time sample. Sample time in milliseconds.0=off.

RTS minimum is 100msec (counts = 100). Maximum 10

seconds in binary; 9.999 seconds in BCD

Word 11

Bits 00-15

(00-17)

Low scale value for channel 1. Scale values are limited to

32767 in binary format; +7999 in BCD format.

Word 12

Bits 00-15

(00-17)

High scale value for channel 1. Scale values are limited to

32767 in binary format; +7999 in BCD format.

Word 13

Bits 00-15

(00-17)

Low clamp value for channel 1. The channel output will not be

allowed to go below this value (in scaled units) regardless of

the data sent to the module. Clamp values are limited to

32767 in binary format; +7999 in BCD format.

Word 14

Bits 00-15

(00-17)

High clamp value for channel 1. The channel output will not be

allowed to go above this value (in scaled units) regardless of

the data sent to the module. Clamp values are limited to

32767 in binary format; +7999 in BCD format.

Bits 00-11

(00-13)

Maximum ramp rate. If this field is not 0, the module will limit

the maximum rate of change for this channel to be a

percentage of the scaled range of the module. Legal values

are from 1 to 200% of full scale/second.

Word 15

Bit 12 (14) Constant = 0

Word 15

Bits 13-14

(15-16)

Reset state. This field controls what the channel will output if

the I/O reset line is asserted:

00 binary = last state;

01 binary = minimum output; (example: < -10V, < 4mA)

10 binary = maximum output; (example: > 10V, > 22mA)

11 binary = user reset value.

Word 15 continued Bit 15 (17)

Alarm enable. If set to 1, the module reports high clamp, low

clamp and rate limit. If 0, these warnings are suppressed.

Word 16

Bits 00-15

(00-17)

Reset value. If the user selects the channel to go to a user

reset value upon I/O reset, the value in scaled units is entered

here. Otherwise, set to 0.

Words 17 thru 22 Same as words 11 thru 16 but for channel 2.

Words 23 thru 28 Same as words 11 thru 16 but for channel 3.

Words 29 thru 34 Same as words 11 thru 16 but for channel 4.

Words 35 thru 40 Same as words 11 thru 16 but for channel 5.

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 187 188

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