Standard Items
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| Modifier | Description |
|---|---|
| GR | Append a 'GR' to analog item to request four bytes of data and have the response converted to Grey Code. *Optionally use the TK function code without modifiers. |
| H | Append an 'H' to an analog item to convert the response to BCD. |
| L | Append an 'L' to an analog item to request 4 bytes of data or append an 'L' to a set point item to write 4-bytes of data. |
| U | Append a 'U' to to an analog item to process the response as an unsigned value. |
| ^ | Append a '^' and a byte order code number to an analog or set point item to apply a specific byte order to the incoming or outgoing values. *See below for Byte Order Code Numbers. |
| ; | Append a ';' and a second card and point number to MCO items |
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| Item | Result |
|---|---|
| AI:1/1 | Returns the 2-byte signed AI value at card 1 point 1 |
| AI:1/1UL | Returns the 4-byte unsigned AI value at card 1 point 1 |
| AI:1/1H or AI:1/1HU | Returns the 2-byte unsigned AI value at card 1 point 1 converted to BCD |
| AI:1/1GR or AI:1/1GRLU | Returns the 4-byte unsigned AI value at card 1 point 1 converted to Grey Code |
| AI:1/1L^4 | Returns the 4-byte signed AI value at card 1 point 1 in the selected byte order 4 |
| TK:1/1 | Returns the 4-byte unsigned AI value at card 1 point 1 converted to Grey Code |
| DI:5/1 | Returns the boolean DI value at card 5, bit number 1 |
| SI:7/3.2 | Returns the signed SI value of the first two bits from card 7 bit 3 |
| MCO: 15/15;12/15 | If writing a 1, will write to the first card and point (15 and 15). If writing a 0, will write to the second card and point (12 and 15) |
| CO:6/2 | Will write a 1 or 0 to card 6, bit 2 |
| SP:4/1L | Will write a four byte value to card 4 bit 1 |
| AI:0/1/4 | Returns the boolean value of the 4th bit on card 0 point 1. |
| AI:0/1/4.4 | Returns the integer value of the 4 bits beginning with the 4th bit on card 0 point 1, masked and shifted to the least important position. Examples: Given the hex result of AI:0/1 of "B6 B9", the value of the 4 bits beginning at the 4th bit is determined as follows:
Given the binary result of AI:0/1 of 1011 0110 1011 1001, the value of the 4 bits beginning at the 4th bit is determined as follows:
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| AI:0/1/4&4 | Returns the integer value of the 4 bits beginning with the 4th bit on card 0 point 1, masked only. Examples: Given the hex result of AI:0/1 of "B6 B9", the value of the 4 bits beginning at the 4th bit is determined as follows:
Given the binary result of AI:0/1 of 1011 0110 1011 1001, the value of the 4bits beginning at the 4th bit is determined as follows.
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