US 12,222,696 B2
Controller, control system, and control method
Tomonari Inui, Kyoto (JP)
Assigned to OMRON CORPORATION, Kyoto (JP)
Appl. No. 17/597,105
Filed by OMRON CORPORATION, Kyoto (JP)
PCT Filed Mar. 3, 2020, PCT No. PCT/JP2020/008911
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2021/005829, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 2019-126704 (JP), filed on Jul. 8, 2019.
Prior Publication US 2022/0236711 A1, Jul. 28, 2022
Int. Cl. G05B 19/05 (2006.01)
CPC G05B 19/052 (2013.01) [G05B 19/056 (2013.01); G05B 19/058 (2013.01); G05B 2219/2241 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A controller for controlling a control object, comprising:
a communication interface circuitry configured to access a database device;
an instruction execution circuitry configured to execute a user program including an access instruction for accessing the database device, the user program being associated with control of the control object; and
an access processing circuitry configured to generate an access request in response to execution of the access instruction by the instruction execution circuitry and cause the communication interface circuitry to transmit the access request,
wherein the access processing circuitry stores an error list including access requests recorded when access to the database device fails into a memory, and
wherein the instruction execution circuitry instructs, in response to input from a user for setting of an extraction condition, the access processing circuitry to extract the access request satisfying the extraction condition from the error list stored in the memory, and
wherein the access processing circuitry searches the error list stored in the memory, extracts the access request including a character string matching with the extraction condition from the error list, and causes the communication interface to retransmit the access request extracted.