Parameter Length In Bytes - Siemens SIMATIC ET 200S Manual

Configuration Options
3.9 Limitations on the number of modules that can be
connected/maximum configuration
• Number of modules:
– ET 200S with IM151-1 BASIC: max. 12 modules
– ET 200S with IM151-1 STANDARD; IM151-1 FO STANDARD; IM151-1
HIGH FEATURE:
max. 63 modules
This includes power modules, electronic modules, RESERVE modules, and
motor starters.
• Bus length of the ET 200S:
– Not relevant to the IM151-1 BASIC (see Section 4.1).
– Max. 2 m (can be set): in the IM151-1 STANDARD; IM151-1 FO
STANDARD:
– Max. 1 m: in the IM 151-1 HIGH FEATURE
• Parameter length: depends on the DP master used (maximum 244 bytes)
Table 3-12 Parameter length in bytes
IM151-1 BASIC
IM151-1 STANDARD
IM151-1 FO STANDARD
IM151-1 HIGH FEATURE
PM-E 24 VDC
PM-E 24–48 VDC
PM E 24 48 VDC/24 230 VAC PM-E 24–48 VDC/24–230 VAC
2DI 24 VDC High Feature
4DI 24 VDC High Feature
2DI 24 VDC Standard
4DI 24 VDC Standard
4DI 24 VDC/SRC Standard
4DI NAMUR
2DI 120 VAC Standard
2DI 230 VAC Standard
2DO 24 VDC/0.5 A High
Feature
3-40
Module Parameter
19 bytes
27 bytes
27 bytes
56 bytes*
3 bytes
3 bytes
3 bytes
1 byte
12 bytes
3 bytes
3 bytes
3 bytes
Module
length
2AI I 2WIRE S
2AI I 2WIRE High Speed
2AI I 4WIRE Standard
2AI I 2/4WIRE High
Feature
2AI I 4WIRE High Speed
2AI RTD Standard
2AI RTD High Feature
2AI TC Standard
2AI TC High Feature
2AO U Standard
2AO U High Feature
2AO I Standard
2AO I High Feature
1Count 24V/100kHz
1Count 5V/500kHz
Parameter
length
4 bytes
12 bytes
(4 bytes***)
4 bytes
12 bytes
(4 bytes****)
4 bytes
7 bytes
(4 bytes**)
4 bytes
7 bytes
7 bytes
16 bytes
16 bytes
ET 200S Distributed I/O System
EWA-4NEB780602402-09