Learn ARENA-SCRIPTING with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Arena Create and Dispose Basic Flow

CREATE:
    INTERVAL(1)
DISPOSE:

Simple SIMAN code for generating entities and disposing them.

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Arena Process with Seize-Delay-Release

RESOURCE: MACHINE
PROCESS:
    SEIZE(MACHINE)
    DELAY(5)
    RELEASE(MACHINE)

A basic process module with a resource.

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Arena Assign Attribute Example

ASSIGN:
    A_ENTTYPE = 1
    A_PRIORITY = 5

Assign an attribute to incoming entities.

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Arena Decide Branching Example

DECIDE:
    IF RANDOM(1) < 0.7 THEN
        GO TO ROUTE_A
    ELSE
        GO TO ROUTE_B

Route entities based on a probability.

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Arena Variable Increment

ASSIGN:
    V_COUNT = V_COUNT + 1

Increase a global variable inside a SIMAN block.

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Arena Record Statistics

RECORD:
    TALLY(WAIT_TIME, TNOW - A_STARTTIME)

Record entity wait time.

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Arena Hold and Signal Blocks

HOLD:
    TYPE = SIGNAL
    NAME = RELEASE_START

SIGNAL RELEASE_START

Hold entities until a signal occurs.

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Arena Read Data from External File

READ:
    FILE 'input.dat'
    V_VALUE

Read values from a file using SIMAN READ.

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Arena Batch and Separate

BATCH:
    TYPE = PERMANENT
    SIZE = 3

SEPARATE:
    TYPE = SPLIT

Group and ungroup entities.

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Arena Schedule Based Delay

DELAY:
    DURATION = SVC_SCHEDULE(TNOW)

Delay an entity using a schedule-dependent duration.

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Code Sample Descriptions

Arena Create and Dispose Basic Flow

CREATE:
    INTERVAL(1)
DISPOSE:

Simple SIMAN code for generating entities and disposing them.

Let’s Try →

Arena Process with Seize-Delay-Release

RESOURCE: MACHINE
PROCESS:
    SEIZE(MACHINE)
    DELAY(5)
    RELEASE(MACHINE)

A basic process module with a resource.

Let’s Try →

Arena Assign Attribute Example

ASSIGN:
    A_ENTTYPE = 1
    A_PRIORITY = 5

Assign an attribute to incoming entities.

Let’s Try →

Arena Decide Branching Example

DECIDE:
    IF RANDOM(1) < 0.7 THEN
        GO TO ROUTE_A
    ELSE
        GO TO ROUTE_B

Route entities based on a probability.

Let’s Try →

Arena Variable Increment

ASSIGN:
    V_COUNT = V_COUNT + 1

Increase a global variable inside a SIMAN block.

Let’s Try →

Arena Record Statistics

RECORD:
    TALLY(WAIT_TIME, TNOW - A_STARTTIME)

Record entity wait time.

Let’s Try →

Arena Hold and Signal Blocks

HOLD:
    TYPE = SIGNAL
    NAME = RELEASE_START

SIGNAL RELEASE_START

Hold entities until a signal occurs.

Let’s Try →

Arena Read Data from External File

READ:
    FILE 'input.dat'
    V_VALUE

Read values from a file using SIMAN READ.

Let’s Try →

Arena Batch and Separate

BATCH:
    TYPE = PERMANENT
    SIZE = 3

SEPARATE:
    TYPE = SPLIT

Group and ungroup entities.

Let’s Try →

Arena Schedule Based Delay

DELAY:
    DURATION = SVC_SCHEDULE(TNOW)

Delay an entity using a schedule-dependent duration.

Let’s Try →