---
title: "system.opc.writeValues"
description: "This function is a bulk version of system.opc.writeValue."
---

# system.opc.writeValues

> This function is a bulk version of system.opc.writeValue.

This function is used in **Python Scripting**.

## Description
This function is a bulk version of [system.opc.writeValue](system-opc-writeValue.md). It takes a list of addresses and a list of objects, which must be the same length. It will write the corresponding object to the corresponding address in bulk. It will return a list of status codes representing the individual write success or failure for each corresponding address.

## Client Permission Restrictions
[Permission Type](projects\project-properties\project-properties.md#client---permissions):: OPC Server Management

Client access to this scripting function is blocked to users that do not meet the role/zone requirements for the above permission type. This function is unaffected when run in the Gateway scope.

## Syntax
`system.opc.writeValues(opcServer, itemPaths, values)`

### Parameters

|Type|Parameter|Description|
|--|--|--|
|String |`opcServer` | The name of the OPC server connection in which the items reside.|
|String[]| `itemPaths`| A list of item paths, or addresses, to write to.|
|Object[]| `values` | A list of values to write to each address specified.|

### Returns

**Quality[]** - An array of Quality objects, each entry corresponding in order to the addresses specified.

### Scope

All