Table of Contents
Abstractions
A VSCP unit is describing it's configuration to the world with a register model where each register is eight bit in width. This is often inconvenient for a human user who is used to higher level types and this is what abstractions are there for. They sit above registers and specify types as strings, floats, integers and other such higher level types.
A/D value
| Name | Type | Description |
|---|---|---|
| ch0_value | uint16_t | A/D value for channel 0 |
| ch1_value | uint16_t | A/D value for channel 1 |
| ch2_value | uint16_t | A/D value for channel 2 |
| ch3_value | uint16_t | A/D value for channel 3 |
Measurement value
| Name | Type | Description |
|---|---|---|
| ch0_measurement_value | float | Measurement value for channel 0 |
| ch1_measurement_value | float | Measurement value for channel 1 |
| ch2_measurement_value | float | Measurement value for channel 2 |
| ch3_measurement_value | float | Measurement value for channel 3 |
A/D report interval
| Name | Type | Description |
|---|---|---|
| ch0_report_interval | uint16_t | Report interval in milliseconds for channel 0. Set to zero to disable. |
| ch1_report_interval | uint16_t | Report interval in milliseconds for channel 1. Set to zero to disable. |
| ch2_report_interval | uint16_t | Report interval in milliseconds for channel 2. Set to zero to disable. |
| ch3_report_interval | uint16_t | Report interval in milliseconds for channel 3. Set to zero to disable. |
A/D low alarm
Low alarms will use index 0,1,2,3 to identify the origin of the alarm. See Events for more information.
| Name | Type | Description |
|---|---|---|
| ch0_low_alarm | uint16_t | Low alarm set point for channel 0. |
| ch1_low_alarm | uint16_t | Low alarm set point for channel 1. |
| ch2_low_alarm | uint16_t | Low alarm set point for channel 2. |
| ch3_low_alarm | uint16_t | Low alarm set point for channel 3. |
A/D high alarm
High alarms will use index 0x80,0x81,0x82,0x83 (bit 7 set of the index byte) to identify the origin of the alarm. See Events for more information.
| Name | Type | Description |
|---|---|---|
| ch1_high_alarm | uint16_t | High alarm set point for channel 0. |
| ch2_high_alarm | uint16_t | High alarm set point for channel 1. |
| ch3_high_alarm | uint16_t | High alarm set point for channel 2. |
| ch4_high_alarm | uint16_t | High alarm set point for channel 3. |
Measurement report interval
| Name | Type | Description |
|---|---|---|
| ch0_measurement_report_interval | uint16_t | Measurement report interval for channel 0. Set to zero to disable. |
| ch1_measurement_report_interval | uint16_t | Measurement report interval for channel 1. Set to zero to disable. |
| ch2_measurement_report_interval | uint16_t | Measurement report interval for channel 2. Set to zero to disable. |
| ch3_measurement_report_interval | uint16_t | Measurement report interval for channel 3. Set to zero to disable. |
A/D absolute low value
| Name | Type | Description |
|---|---|---|
| ch0_low | uint16_t | Absolute low value for channel 0 |
| ch1_low | uint16_t | Absolute low value for channel 1 |
| ch2_low | uint16_t | Absolute low value for channel 2 |
| ch3_low | uint16_t | Absolute low value for channel 3 |
A/D absolute high value
| Name | Type | Description |
|---|---|---|
| ch0_high | uint16_t | Absolute high value for channel 0 |
| ch1_high | uint16_t | Absolute high value for channel 1 |
| ch2_high | uint16_t | Absolute high value for channel 2 |
| ch3_high | uint16_t | Absolute high value for channel 3 |
k constants for linearization
Linearization is available so a measurement y can be calculated from
y = k*x + m
where x is either the current counter value for a channel or the current frequency for a channel.
| Name | Type | Description |
|---|---|---|
| ch0_k | float | k-constant for linearization of channel 0 A/D value |
| ch1_k | float | k-constant for linearization of channel 1 A/D value |
| ch2_k | float | k-constant for linearization of channel 2 A/D value |
| ch3_k | float | k-constant for linearization of channel 3 A/D value |
m constants for linearization
Linearization is available so a measurement y can be calculated from
y = k*x + m
where x is either the current counter value for a channel or the current frequency for a channel.
| Name | Type | Description |
|---|---|---|
| ch0_m | float | m-constant for linearization of channel 0 A/D value. |
| ch1_m | float | m-constant for linearization of channel 1 A/D value |
| ch2_m | float | m-constant for linearization of channel 2 A/D value |
| ch3_m | float | m-constant for linearization of channel 3 A/D value |
email: info@grodansparadis.com phone: +46 (0)8 40011835
web:http://www.grodansparadis.com