Specifications

Product overview
2.1 Properties
DI 16x24VDC HF Digital Input Module (6ES7521-1BH00-0AB0)
Manual, 07/2014, A5E03485952-AD
9
Properties
The module has the following technical properties:
● 16 digital inputs; electrically isolated in groups of 16
● Rated input voltage 24 V DC
● Configurable input delay: 0.05 ms to 20 ms
● Configurable diagnostics (per channel)
● Configurable hardware interrupt (per channel)
● Suitable for switches and 2-/3-/4-wire proximity switches
The module supports the following functions:
Table 2- 1 Version dependencies of the module functions
Function
Firmware version
of the module
Configuration software
STEP 7
(TIA Portal)
GSD file in STEP 7
(TIA Portal) V12 or higher, or
STEP 7 V5.5 SP3 or higher
Firmware update
V1.0.0 or higher
V12 or higher
X
Identification data I&M0 to I&M3
V1.0.0 or higher
V12 or higher
X
Parameter assignment in RUN
V1.0.0 or higher
V12 or higher
X
Isochronous mode
V1.0.0 or higher
V12 or higher
---
Module-internal Shared Input (MSI) V2.0.0 or higher V13 Update 3 or
higher
(PROFINET IO
only)
X
(PROFINET IO only)
Configurable submodules / submodules for
Shared Device
V2.0.0 or higher V13 Update 3 or
higher
(PROFINET IO
only)
X
(PROFINET IO only)
Configurable after interface module
IM 155-5 DP ST
V2.0.0 or higher V13 or higher X
You can configure the module with STEP 7 (TIA Portal) and with a GSD file.
Accessories
The following accessories are supplied with the module and can also be ordered separately
as spare parts:
● Labeling strips
● U connector
● Universal front door