Home Symbol library HMI screen elements Alarms & status indicators Alarms & status indicators
Alarm priority shapes P1 to P4, bells and banners, signal quality, operating modes, interlocks and bypasses, flow arrows and communication status.
All 152 Alarm priority symbols & bells 20 Alarm states 8 Alarm banners & counters 15 Signal quality 16 Operating modes 13 Interlocks, permissives & locks 16 Communication status 10 Notifications 9 Batch & recipe states 12 Flow direction 21 Display hierarchy levels 12
152 of 152 symbols
Clear filters
Alarm priority symbols & bells 20
Alarm bell P1 critical ISA-101 +3 Alarm bell with horn silenced (alarm still active) ISA-101 Alarm P1 critical (round numbered badge) ISA-101 +2 Alarm P1 critical (triangle, unacknowledged) ISA-101 +2 Alarm P2 high (diamond, unacknowledged) ISA-101 +2 Alarm P3 medium (circle, unacknowledged) ISA-101 +2 Alarm P4 low / advisory (square, unacknowledged) ISA-101 +2 Alarm states 8
Alarm shelved (temporarily blocked) ISA-101 Alarm in service (enabled) ISA-101 Alarm out of service (maintenance) ISA-101 Active unacknowledged alarm (ringing bell) ISA-101 Alarm in normal state (no alarm) ISA-101 Active acknowledged alarm ISA-101 Alarm returned to normal, awaiting acknowledgement ISA-101 Alarm suppressed by design ISA-101 Alarm banners & counters 15
Unacknowledged alarm counter (bell) ISA-101 Alarm summary banner with active P1 highlighted ISA-101 +1 Alarm summary 2x2 grid ISA-101 Alarm summary banner by priority (P1-P4) ISA-101 Alarm summary column ISA-101 Shelved and suppressed alarm counters ISA-101 Alarm summary banner, no active alarms ISA-101 Total active alarm counter (bell) ISA-101 Last alarm line P1 ISA-101 +1 Alarm counter P1 (triangle) ISA-101 +3 Signal quality 16
Signal quality: stale (not refreshed) ISA-101 Signal quality: good ISA-101 Signal quality: forced / overridden ISA-101 Signal quality: out of range (high) ISA-101 Signal quality: out of range (low) ISA-101 Signal quality: uncertain ISA-101 Signal quality: bad ISA-101 Signal quality: simulated ISA-101 Signal quality: no communication ISA-101 Process value: stale (not refreshed) ISA-101 Process value: good quality ISA-101 Process value: forced ISA-101 Process value: uncertain quality ISA-101 Process value: bad quality ISA-101 Process value: simulated ISA-101 Process value: no communication ISA-101 Operating modes 13
Automatic mode ISA-101 Cascade mode ISA-101 Remote setpoint mode ISA-101 Local (at the field) mode ISA-101 Maintenance mode ISA-101 Manual mode ISA-101 Ratio mode ISA-101 Remote (control room) mode ISA-101 Hand-Off-Auto selector in Off ISA-101 +2 Local-Remote selector in Local ISA-101 +1 Interlocks, permissives & locks 16
Start inhibited ISA-101 Lockout/tagout (LOTO) ISA-101 Bypass active (equipment or signal bypassed) ISA-101 Timed bypass active ISA-101 Padlock closed (locked) ISA-101 +2 Safety function bypassed ISA-101 Safety function tripped ISA-101 Safety function healthy ISA-101 Interlock active (blocking the action) ISA-101 Interlock tripped (broken chain) ISA-101 Interlock healthy (conditions met) ISA-101 Permissive not met (start not allowed) ISA-101 Permissives met (ready to start) ISA-101 Reset required (manual re-arm) ISA-101 Communication status 10
Degraded communication (packet loss) ISA-101 Communication error (broken link) ISA-101 Heartbeat (watchdog) OK ISA-101 Heartbeat (watchdog) lost ISA-101 Communication OK ISA-101 Reconnecting ISA-101 Redundant network: link A down ISA-101 Redundant network: both links OK ISA-101 Link disabled or not configured ISA-101 Communication timeout ISA-101 Notifications 9
Warning message ISA-101 System error message ISA-101 Information message ISA-101 New unread message ISA-101 Success message ISA-101 Operator message ISA-101 Message requiring operator response ISA-101 Event log ISA-101 System event ISA-101 Batch & recipe states 12
Batch aborted ISA-101 Batch aborting (transition) ISA-101 Batch complete ISA-101 Batch idle ISA-101 Batch running / start ISA-101 Batch stopped ISA-101 Batch stopping (transition) ISA-101 Advance to next sequence step ISA-101 Batch paused ISA-101 Batch restarting ISA-101 Recipe loaded ISA-101 Recipe modified, unsaved ISA-101 Flow direction 21
Bidirectional flow arrow horizontal ISA-101 +1 Elbow flow arrow: right then down ISA-101 +3 Flow arrow right ISA-101 +3 Flow stopped (no flow) ISA-101 Flow arrow diagonal down-right ISA-101 +3 Forward direction (FWD) ISA-101 +1 Clockwise rotation ISA-101 +1 Recirculation (return loop) ISA-101 Unwanted reverse flow (backflow) ISA-101 Display hierarchy levels 12
Display level 1 indicator (overview), grid ISA-101 +3 Display level 1 indicator (overview), bars ISA-101 +3 Display level 1 indicator (overview), pyramid ISA-101 +3
No symbols match these filters Try another type or state, or clear the filters to see the whole category.Clear filters
ISA-101 flat symbols use grey for the equipment and keep colour for state only (green running, grey stopped, red fault, orange P2, yellow no feedback, blue manual). Each state is a separate file, ready to map to a multi-state object.
Browse and preview for free. Downloading the editable SVG needs an account and counts against your plan’s monthly downloads. Once downloaded, use it in your own HMI, SCADA and documentation projects, commercial ones included. Do not resell or redistribute the symbols as a library or pack.
