IGS-NT Communication Guide
147
Data type Meaning
Number of
registers
Data part of the communication function
Integer8 Signed integer – 8 bits 1
MSB1 = sign extension LSB1
LSB1 = comm. object value
Unsigned8 Unsigned integer – 8 bits 1
MSB1 = 0
LSB1 = comm. object value
Integer16 Signed integer – 16 bits 1
MSB1 = comm. object value, bits 15-8
LSB1 = comm. object value, bits 7-0
Unsigned16 Unsigned integer – 16 bits 1
MSB1 = comm. object value, bits 15-8
LSB1 = comm. object value, bits 7-0
Integer32 Signed integer – 32 bits 2
MSB1 = comm. object value, bits 31-24
LSB1 = comm. object value, bits 23-16
MSB2 = comm. object value, bits 15-8
LSB2 = comm. object value, bits 7-0
Unsigned32 Unsigned integer – 32 bits 2
MSB1 = comm. object value, bits 31-24
LSB1 = comm. object value, bits 23-16
MSB2 = comm. object value, bits 15-8
LSB2 = comm. object value, bits 7-0
Binary8 Binary number – 8 bits 1
MSB1 = 0
LSB1 = comm. object value
Binary16 Binary number – 16 bits 1
MSB1 = comm. object value, bits 15-8
LSB1 = comm. object value, bits 7-0
Binary32 Binary number – 32 bits 2
MSB1 = comm. object value, bits 31-24
LSB1 = comm. object value, bits 23-16
MSB2 = comm. object value, bits 15-8
LSB2 = comm. object value, bits 7-0
Char ASCII character 1
MSB1 = 0
LSB1 = comm. object value
List String list 1
MSB1 = 0
LSB1 = comm. object value
ShortStr
ASCII string of max. length
of 15 characters (zero
terminated string)
8
MSB1 = 1. character of the string
LSB1 = 2. character of the string
MSB2 = 3. character of the string
LSB2 = 4. character of the string
…
LongStr
ASCII string of max. length
of 31 characters (zero
terminated string)
16
MSB1 = 1. character of the string
LSB1 = 2. character of the string
MSB2 = 3. character of the string
LSB2 = 4. character of the string
…
Date Date 2
MSB1 = BCD(day)
LSB1 = BCD(month)
MSB2 = BCD(year)