Rigol PLA2216 User manual

用户手册
User Guide
PLA2216 有源逻辑探头
PLA2216 Active Logic Probe
© 2023 RIGOL TECHNOLOGIES CO., LTD. All Rights Reserved.

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一般安全概要
正确的连接与断开探头。
遵循所有终端额定值。
电源接通后，请勿接触外露的线路和元件。
怀疑产品出故障时，请勿进行操作。
切勿开盖操作。
请勿在易燃易爆的环境下操作。
请勿在潮湿的环境下操作。
请保持产品表面干燥。
请注意搬运安全。

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产品简介
PLA2216 是一款高性能有源逻辑
探头，可将待测系统上的数字信
号连接至 RIGOL MSO5000 系
列和 DHO900/S 系列数字示波
器，实现逻辑分析仪功能。
PLA2216 共有 16 个数字通道
（D0-D15 ）， 分为两个通道组
（D0-D7 和D8-D15 ）。 同时
PLA2216 标配 20 根信号引线以及 20 个探头钩，可用于灵活的连接被测信号
和参考地。

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逻辑探头的使用方法
1．连接 PLA2216 至示波器：将PLA2216 探头输出端连接至示波器前面
板的数字信号输入端，如下图所示。
2．连接被测信号至 PLA2216：用户可根据测试需求将任意数量（≤16）
的被测信号连接至 PLA2216 探头输入端。连接时需注意，输入信号的幅

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度不能超过探头的最大工作电压范围。PLA2216 提供两种与被测信号的
连接方式，以方便用户灵活探测信号。
方法一：用户可通过输入端引线单独连接各个被测信号。通过输入
端引线上的通道标示以及探头输入端上的标签可方便地识别每个
信号所对应的通道号，如图 1所示。
图1
注意：使用过程中若出现串扰或地弹，可能是多通道共用地线导致。
因此建议您尽可能为每通道的信号线配一根地线并双绞，并且地
线尽可能靠近对应的信号线。
方法二：在方法一的基础上，将输入端引线与探头测试夹进行连接，
然后通过测试夹内的金属钩连接被测信号节点，如图 2所示。

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图2
3．设置探头：按示波器前面板上的 LA 键进入数字通道设置菜单，用户可
在该菜单下查看和设置如下参数：阈值电平(D7-D0 与D15-D8 分组阈
值电平独立调节)、波形大小(应用于所有通道，其中“大”选项只在屏
幕活动通道数不多于 8时可用)和通道标签等。
注意：若探头第一次连接到该示波器或者环境温度变化 5℃以上，建议
利用 LA 菜单下校准功能进行零点校准（按 LA 阈值 校准），校
准时保持 PLA2216 输入端不接信号。
4．功能检查：完成上述操作后，被测信号将显示在示波器屏幕上相应的数
字通道上。若看不到信号，请调节示波器选择合适的触发源、触发电平
和触发方式等常规设置。若仍然看不到信号，请再次检查电气连接和参
数设置，或尝试使用其他探头(如模拟探头)来验证测试点的信号状态。

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探头指标
输入通道数
16
阈值范围
±15 V
阈值精度
±(100 mV+3%
的阈值设置
)
最大输入电压
±40 V
（峰值）
最大输入动态范围
±10 V+
阈值
最小电压摆动
500 mVpp
最小可检测脉宽
5 ns
输入阻抗 约
101 kΩ
输入电容 约
8 pF
探头主缆长度 约
90 cm
输入端引线长度 约
25 cm
操作环境
0
℃
~50
℃，
0~80%RH
存放环境
-20
℃
~60
℃，
0~90%RH

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附件
编号
名称描述
数量
1
主线
1
2
引线
20
3
探头钩
20
4
中英文用户手册
1
5
PLA2216
包装盒
1

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附件示意图
主线 引线 探头钩
联系我们
如您在使用此产品或本手册的过程中有任何问题或需求，可与 RIGOL 联系：
电子邮箱：[e-mail]
网址：www.rigol.com

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General Safety Summary
Connect and disconnect the probe properly.
Observe all terminals ratings.
Do not touch exposed junctions and components when the instrument
is powered on.
Do not operate with suspected failures.
Do not operate without covers.
Do not operate in an explosive atmosphere.
Do not operate in wet conditions.
Keep product surface clean and dry.
Handle with caution.

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Product Overview
As a high-performance active logic
probe, PLA2216 connects the
digital signals under test to the
MSO5000 and the DHO900/S
series digital oscilloscope to realize
the logic analyzer function.
The 16 digital channels (D0-D15)
of PLA2216 are divided into two channel groups (D0-D7 and D8-D15). 20
input signal leads and 20 grabbers are provided as standard configurations
for PLA2216 to realize flexible connection of signals and reference ground.

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How to Use the Logic Probe
1．Connect PLA2216 to the oscilloscope: connect the probe output
to the digital signal input terminal on the front panel of the
oscilloscope, as shown in the figure below.
2．Connect the signals under test to PLA2216: users can connect
any number (≤16) of the signals under test to PLA2216 probe input

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terminal according to the test requirements. Note that the amplitude
of the input signal should not exceed the maximum working voltage
range of the probe. PLA2216 provides two connection methods to
realize convenient and flexible detection.
Method 1: users can connect the signals under test through the
probe leads separately. You can easily identify the
corresponding channel of each signal by the channel label on
the probe leads and the label of the probe input, as shown in
Figure 1.
Figure 1
Note: The crosstalk or ground bounce during use may be
caused by the fact that the channels share a single ground lead.

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Therefore, you are recommended to add one ground wire to the
signal line of each channel and twist them, and the ground wire
should be as close as possible to the corresponding signal line.
Method 2: on the basis of Method 1, you can connect a grabber
to each lead and connect it to the device under test as shown in
Figure 2.
Figure 2
3．Set the probe: press LA on the front panel of the oscilloscope to
enter the digital channel setting menu. Users can view and set the
following parameters under this menu: threshold level (the threshold
levels of D7-D0 and D15-D8 can be adjusted independently),
waveform size (applicable to all the channels; wherein, Large is only

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available when the number of active channels is no more than 8),
channel label and so on.
Note: When the probe is connected to the oscilloscope for the first
time or the temperature change is more than 5 degrees, you are
recommended to calibrate the probe zero using the calibration
function in the LA menu (press LA Threshold Calibration.
Please disconnect all the signals from the PLA2216 input terminal
during the calibration.
4．Function Inspection:after finishing the above operations, the
signal under test will be displayed on the corresponding digital
channel on the oscilloscope screen. If no signal is displayed, please
adjust the oscilloscope to select proper general settings (such as the
trigger source, trigger level and trigger mode). If the problem still
persists, please check the electric connection and parameter settings
again or please try to use other probes (such as analog probe) to
check the signal state of the test point.

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Probe Specifications
Input channels
16
Threshold range
±15 V
Threshold accuracy
± (100 mV + 3% of threshold setting)
Max. input voltage
±40 V (peak)
Max. input dynamic range
±10 V + threshold setting
Min. voltage swing
500 mVpp
Min. detectable pulse
5 ns
Input impedance
About 101 kΩ
Input capacitance
About 8 pF
Cable length
About 90 cm
Lead length
About 25 cm
Operation environment
0
℃
~50
℃
, 0~80%RH
Storage environment
-20
℃
~60
℃
, 0~90%RH

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Accessories
Item
Description
Quantity
1
Main Cable
1
2
Lead
20
3
Grabber
20
4
Chinese and English Version of User Guide
1
5
PLA2216 Packing Box
1

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Accessories Sketch Map
Main Cable Lead Grabber
Contact Us
If you have any problem or requirements when using our products or this
manual, please contact RIGOL.
E-mail：[e-mail]
Website：www.rigol.com

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UGE29X04-1110
Jul. 2023