8359 datasheet(21/24 Pages) PHOENIX

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IB IL AO 4/8/U/BP-XC-PAC

8359_en_00

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Configuration and analog value transmission

You can configure the terminal either via process data or

via PCP and transmit the analog values accordingly.

Example for terminal configuration via process data

All channels are to hold their value (HOLD), use the IB IL for-

mat and output the values in the range 0 V to 5 V. Therefore

the parameter value is 0002

hex.

In the event that consistency of five words cannot be en-

sured, an intermediate step is recommended after every

output command. The buffer bit in the “Write analog values”

command is used for this purpose. As a result, step 3 and

step 5 become more complicated:

Step

Process data

Meaning

OUT1 = 6002

hex

Specify configuration

Wait until

IN1 = 6002

hex

Wait for confirmation

Analog value

OUT2 = Channel 1, ...,

OUT5 = Channel 4

OUT1 = 0100

hex

Analog value output at

channels 1 to 4

Wait until

IN1 = 0100

hex

Wait for confirmation

Analog value

OUT2 = Channel 5, ...,

OUT5 = Channel 8

OUT1 = 0900

hex

Analog value output at

channels 5 to 8

Wait until

IN1 = 0900

hex

Wait for confirmation

Secure process data transmission requires pro-

cess data consistency of five words.

Step

Process data

Meaning

OUT1 = 6002

hex

Specify configura-

tion

Wait until IN1 = 6002

hex

Wait for confirma-

tion

OUT1 = 0300

hex

Buffer command

Wait until IN1 = 0300

hex

Wait for confirma-

tion

OUT2 = analog value of chan-

nel 1

OUT3 = analog value of chan-

nel 2

OUT4 = analog value of chan-

nel 3

OUT5 = analog value of chan-

nel 4

Buffer the analog

values for chan-

nels 1 to 4

OUT1 = 0100

hex

Output the analog

values for chan-

nels 1 to 4

Wait until IN1 = 0100

hex

Wait for confirma-

tion

OUT1 = 0B00

hex

Buffer command

Wait until IN1 = 0B00

hex

Wait for confirma-

tion

OUT2 = analog value of chan-

nel 5

OUT3 = analog value of chan-

nel 6

OUT4 = analog value of chan-

nel 7

OUT5 = analog value of chan-

nel 8

Buffer the analog

values for chan-

nels 5 to 8

OUT1 = 0900

hex

Output the analog

values for chan-

nels 5 to 8

Wait until IN1 = 0900

hex

Wait for confirma-

tion

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