Details for DDEntity "158 - Prescription Control State"

158 - Prescription Control State Request changes

Definition	Defines and synchronise the actual state of the prescription system. The state is represented by the lowest significant 2 bits in the lowest significant byte of the process data value: Byte 1: bit 0-1: 00 = manual/off, 01 = auto/on, 10 = error indicator, 11 = undefined/not installed. bits 2-7: reserved set to 0. Byte 2-4: reserved set to 0. The DDI shall support the On Change trigger so that the TC is able to get informed when the value gets changed by the Working Set Master. The TC shall active this trigger when using the DDI. See attachment for more information
Comment	The prescription control master and its clients need to be synchronized in terms of their general state or activation by the user (System activated/deactivated in individual setups). This DDE serves 2 purposes, one is to synchronize the prescription control state and the other is to enable a TC client to announce the support and initial state of its prescription control capabilities. Synchronisation by the prescription master (TC) is done by setting the prescription state of connected TC clients with a process data set value message with this DDE. It is recommended that TC clients reply their state immediately when such a message is received. The property flag "setable" and the trigger method "on change" shall be used with this DDE. The state "manual/off" indicates that the device is in manual state and will ignore all prescription commands. The "auto/on" state indicates that the client accepts the prescription commands as far as its overall process state allows.

Definition

Defines and synchronise the actual state of the prescription system. The state is represented by the lowest significant 2 bits in the lowest significant byte of the process data value: Byte 1: bit 0-1: 00 = manual/off, 01 = auto/on, 10 = error indicator, 11 = undefined/not installed. bits 2-7: reserved set to 0. Byte 2-4: reserved set to 0. The DDI shall support the On Change trigger so that the TC is able to get informed when the value gets changed by the Working Set Master. The TC shall active this trigger when using the DDI. See attachment for more information

Comment

The prescription control master and its clients need to be synchronized in terms of their general state or activation by the user (System activated/deactivated in individual setups). This DDE serves 2 purposes, one is to synchronize the prescription control state and the other is to enable a TC client to announce the support and initial state of its prescription control capabilities. Synchronisation by the prescription master (TC) is done by setting the prescription state of connected TC clients with a process data set value message with this DDE. It is recommended that TC clients reply their state immediately when such a message is received. The property flag "setable" and the trigger method "on change" shall be used with this DDE. The state "manual/off" indicates that the device is in manual state and will ignore all prescription commands. The "auto/on" state indicates that the client accepts the prescription commands as far as its overall process state allows.

Typically used by Device Class(es)	0 - Non-specific system 1 - Tractor 2 - Primary Soil Tillage 3 - Secondary Soil Tillage 4 - Planters /Seeders 5 - Fertilizer 6 - Sprayers 7 - Harvesters 8 - Root Harvester 9 - Forage harvester 10 - Irrigation 11 - Transport / Trailers 12 - Farmyard Work 13 - Powered Auxilary Units 14 - Special Crops 15 - Municipal Work

Unit Symbol	n.a. - not applicable
Bit Resolution	1
SAE SPN
CANBus Range	0 to 3
Display Range	0 to 3
Submit Date	2008-11-07
Submit By	Matthias Meyer
Submit Company	33 - John Deere
Revision Number	1
Current Status	ISO-Approved
Status Date	2009-02-05
Status Comments

Attachments

ISO11783-11-DDI-158-Prescription Control State-v2.pdf
58.54 KB	Upload: 2019-01-14 13:31:39
Example Prescription Control State

Status History

2009-02-05: ISO-Approved

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