Instructions - FinsTCP

1. Open FinsTCP Connection

Instruction Name: FINSTCP_OPEN

Description: Used to open a FINSTCP communication connection in run mode

Parameter List

Parameter Name	Type	Value Range	Description
ID	int	[1,9]	FINSTCP master station process number
logout	bool	-	Whether to comment out; true: the instruction will not execute in the job file; false: not commented out, executable
type	int	215	Open FinsTCP Connection is 215 in the enum type list
userParamInt	int	-	Customer-defined for secondary development, currently meaningless
userParamString	string	-	Customer-defined for secondary development, currently meaningless
variable	object	-	Variable object, containing data, secondvalue, value, varname properties

JSON Example

{
  "ID": 5,
  "logout": false,
  "type": 215,
  "userParamInt": 0,
  "userParamString": "",
  "variable": {
    "data": 0.0,
    "secondvalue": 0,
    "value": 0,
    "varname": ""
  }
}

---

2. Disconnect FinsTCP Connection

Instruction Name: FINSTCP_CLOSE

Description: Disconnects the FINSTCP communication connection in run mode

Parameter List

Parameter Name	Type	Value Range	Description
ID	int	[1,9]	FINSTCP master station process number
logout	bool	-	Whether to comment out; true: the instruction will not execute in the job file; false: not commented out, executable
type	int	216	FINSTCP_CLOSE is 216 in the enum type list
userParamInt	int	-	Customer-defined for secondary development, currently meaningless
userParamString	string	-	Customer-defined for secondary development, currently meaningless

JSON Example

{
  "ID": 9,
  "logout": false,
  "type": 216,
  "userParamInt": 0,
  "userParamString": ""
}

---

3. FinsTCP Connection Status

Instruction Name: FINSTCP_CONNECTION_STATUS

Description: Gets the FINSTCP connection status in run mode

Parameter List

Parameter Name	Type	Value Range	Description
ID	int	[1,9]	FINSTCP master station process number
logout	bool	-	Whether to comment out; true: the instruction will not execute in the job file; false: not commented out, executable
type	int	217	FINSTCP_CONNECTION_STATUS is 217 in the enum type list
userParamInt	int	-	Customer-defined for secondary development, currently meaningless
userParamString	string	-	Customer-defined for secondary development, currently meaningless
variable	object	-	Variable object

variable Object

Parameter Name	Type	Description
data	float	Data value
secondvalue	int	Second value
value	int	Status value; 6 indicates connected
varname	string	Variable name, e.g., "GB[I001]"

Return Value Description

FINSTCP connection status; bool type variable or bound variable, global or local

• true: connected
• false: not connected

JSON Example

{
  "ID": 5,
  "logout": false,
  "type": 217,
  "userParamInt": 0,
  "userParamString": "",
  "variable": {
    "data": 0.0,
    "secondvalue": 1,
    "value": 6,
    "varname": "GB[I001]"
  }
}