Field Assistant within OpreX™ Control of Work
Mobile execution for safer, more efficient field operations.
Field Assistant is the mobile enablement layer within OpreX™ Control of Work, extending digital Control of Work processes directly to the point of work.
Designed for live plant environments, it supports the safe, efficient execution of permits, risk assessments, isolations, operator rounds, and incident reporting—online or offline.
By connecting field teams with the Control of Work system in real time, Field Assistant improves visibility, data quality, and compliance while reducing delays and administrative effort.
Purpose-built for industrial fieldwork
Unlike generic mobile applications, Field Assistant is specifically designed for hazardous and operationally demanding environments.
Its intuitive mobile interface supports use in challenging conditions, with secure offline capability and automatic synchronisation once connectivity is restored
One mobile interface for Control of Work
Field Assistant provides a single mobile access point for Control of Work activities, removing the need to switch between tools.
Mobile-enabled Control of Work Capabilities
Field Assistant supports safe field execution for activities including:
- Permit to Work – initiate, verify, issue, and audit permits in the field
- Isolation Management – record isolation steps with photographic LOTO confirmation
- Operator Driven Reliability (ODR) – execute rounds and capture readings with automated alerts
- Field SOPs – follow structured procedures with step sequencing
- Incident Management – log incidents, observations, and near misses at source
Key benefits
- Real-time visibility of field work status
- Faster, more reliable information flow
- Improved compliance and auditability
- Reduced rework, delay, and operational risk
- Accurate digital records captured at the point of work
Part of Yokogawa’s integrated Control of Work solution
Field Assistant operates as a core component of OpreX™ Control of Work, supporting safe execution alongside Digital Permit to Work, Risk Assessment, Isolation Management, Incident Management, and Operations Management.
Risk Assessment
Robust Risk Assessment identifying all hazards present in the workplace that have the potential to cause harm enabling the necessary control measures to mitigate the risk.
SORM
OpreX Control of Work's SORM - Safety Override Risk Management module offers visibility of current, future and historical permitting workload and highlights “overload risk” and provides additional dashboarding and reporting functionality specific to these in order to ensure operational risk management for process safety.
Reporting
Reporting in OpreX Control of Work allows the user to create and run reports using current and historical data derived from all Job, Task, Isolation and Personnel activity in the system. For example, a report could be created showing all permits completed in an area over a given time period.
GIS
The solution can be configured to use plot plans/maps hosted by WMS (Web Map Service) servers.